indeed
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A2 adverb /ɪnˈdiːd/

indeed

in der Tat
Meaning
used to emphasize or confirm a statement
Example
It was a long journey indeed.
Es war eine lange Reise, in der Tat.
C2 noun /ˌɪntərˈsɛsər/

intercessor

Vermittler
Meaning
a person who intervenes or pleads on behalf of another
Example
He acted as an intercessor to resolve the conflict between the two families.
Er trat als Vermittler auf, um den Konflikt zwischen den beiden Familien zu lösen.
C2 noun /ɪnˈvɛktɪv/

invective

beleidigende Sprache
Meaning
Insulting, abusive, or highly critical language.
Example
The politician’s speech was filled with invective against his opponents.
Die Rede des Politikers war voller beleidigender Sprache gegen seine Gegner.
C1 noun /ɪnˈsek.tɪ.saɪd/

Insecticide

Insektizid
Meaning
a substance used for killing insects; a chemical pesticide that targets insects
Example
The farmer sprayed insecticide on his crops to protect them from harmful bugs.
Der Bauer sprühte Insektizid auf seine Ernte, um sie vor schädlichen Insekten zu schützen.
C1 adjective /ˌɪntərˈtwaɪnd/

intertwined

Glück
Meaning
closely connected or twisted together
Example
Their lives became deeply intertwined after the accident.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C1 noun /ɪmˈpɒs.tər/

Impostor

Betrüger; Hochstapler
Meaning
a person who pretends to be someone else in order to deceive others; a fraud
Example
The impostor convinced everyone he was a doctor until his fake credentials were discovered.
Der Imposter überzeugte alle, dass er ein Arzt war, bis seine falschen Qualifikationen entdeckt wurden.
B1 verb ɪnˈvɛst

invest

investieren
Meaning
To put money, effort, time, etc. into something to make a profit or get an advantage.
Example
Investing in intellectual property can generate passive income.
In geistiges Eigentum zu investieren kann passives Einkommen generieren.
C1 adjective /ɪnˈvɜːs/

Inverse

umgekehrt; entgegengesetzt
Meaning
opposite in order, nature, or effect; reversed
Example
There is an inverse relationship between price and demand.
Es gibt eine umgekehrte Beziehung zwischen Preis und Nachfrage.
C1 noun /ɪnˈfɜːməri/

infirmary

Krankenhaus
Meaning
A hospital or place where the sick or injured are cared for.
Example
The school had an infirmary for minor injuries.
Die Schule hatte ein Krankenhaus für kleinere Verletzungen.
B2 verb /ɪnˈdʒɛkt/

inject

injektieren
Meaning
To introduce a substance, especially a drug, into the body using a needle.
Example
The nurse will inject the vaccine into the patient's arm.
Die Krankenschwester wird den Impfstoff in den Arm des Patienten injizieren.
C2 noun /ˈɪndɪkənt/

indicant

anzeiger
Meaning
Something that indicates or points to a fact or condition.
Example
High fever is often an indicant of infection.
Hoher Fieber ist oft ein Anzeiger für eine Infektion.
B2 noun ɪˈmjuː.nɪ.ti

immunity

immunität
Meaning
The ability of an organism to resist a particular infection or toxin by the action of specific antibodies.
Example
A strong immunity protects against infections.
Eine starke Immunität schützt vor Infektionen.
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

unverständlich
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
Die Vorlesung des Professors war so schnell, dass sie unverständlich wurde.
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

Institut
Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
Die Universität beschloss, neue Regeln für die Bibliothek einzuführen.
A2 adjective, noun /ɪˈtæliən/

italian

Glück
Meaning
relating to Italy, its people, or its language; a person from Italy
Example
She loves Italian food.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C1 noun /ɪnˈdʌstriəsnəs/

industriousness

Fleiß
Meaning
The quality of being hardworking and diligent.
Example
His industriousness earned him a promotion at work.
Sein Fleiß brachte ihm eine Beförderung bei der Arbeit ein.
C1 verb /ɪmˈbɛd/

imbed

einbetten
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
Der Journalist hat sich mit den Truppen eingebettet, um aus erster Hand zu berichten.
B2 adjective /ɪˈreɡjələr/

irregular

unregelmäßig
Meaning
not even or consistent in shape, pattern, time, or behavior; not following normal rules
Example
His attendance at work has been irregular this month.
Seine Anwesenheit bei der Arbeit war diesen Monat unregelmäßig.
B1 verb /ɪnˈvɑːlv/

involve

einbeziehen
Meaning
to include as a necessary part, or to engage someone in an activity
Example
The project will involve several departments working together.
Das Projekt wird mehrere Abteilungen einbeziehen, die zusammenarbeiten.
C1 adjective ɪnˈdel.ə.bəl

indelible

unvergesslich
Meaning
Making marks that cannot be removed; impossible to forget or remove.
Example
Her speech left an indelible mark on the audience.
Ihre Rede hinterließ einen unvergesslichen Eindruck beim Publikum.
C2 verb /aɪˈdɒləˌtraɪz/

idolatrize

verehren
Meaning
To worship idols; to regard with excessive devotion or admiration.
Example
They began to idolatrize the statue as a deity.
Sie begannen, die Statue wie eine Gottheit zu verehren.
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

integriert
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
Integrierte Systeme optimieren die Effizienz.
C2 noun /aɪˈdɒlətri/

idolatry

Götzenverehrung
Meaning
The worship of idols or extreme admiration for someone or something.
Example
The priest condemned the idolatry practiced in the village.
Der Priester verurteilte die im Dorf praktizierte Götzenverehrung.
C2 adjective /ɪˈmɒdɪst/

immodest

überheblich / unanständig
Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
Seine überheblichen Bemerkungen beleidigten das Publikum.
C1 adjective /ɪnˈkɒmpɪtənt/

incompetent

inkompetent
Meaning
Lacking the necessary ability or skills to do something successfully.
Example
He was fired because he was incompetent at his job.
Er wurde entlassen, weil er in seinem Job unfähig war.
B2 noun /ɪnˈhæbɪtənt/

inhabitant

Einwohner
Meaning
a person or animal that lives in a particular place
Example
The inhabitants of the village rely on farming for their livelihood.
Die Einwohner des Dorfes sind auf die Landwirtschaft angewiesen, um ihren Lebensunterhalt zu sichern.
C1 adjective /ɪˈmjuː.tə.bəl/

immutable

unveränderlich
Meaning
Unchangeable, permanent, or fixed
Example
The laws of physics are considered immutable.
Die Gesetze der Physik gelten als unveränderlich.
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

Unmöglichkeit
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
Das Projekt an einem Tag zu beenden war eine Unmöglichkeit.
C1 adjective /ɪˈrɛvəkəbl/

irrevocable

unwiderruflich
Meaning
Not able to be revoked, changed, or undone.
Example
She made an irrevocable decision to leave the company.
Sie traf eine unwiderrufliche Entscheidung, das Unternehmen zu verlassen.
C2 adjective /ˌɪnɪkˈspiːdiənt/

inexpedient

unangebracht
Meaning
Not advisable, suitable, or practical in the circumstances.
Example
It would be inexpedient to invest without proper research.
Es wäre unangebracht, ohne gründliche Recherche zu investieren.
C2 verb /ɪnˈveɪɡəl/

inveigle

verführen
Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
Sie überredete ihn, den Vertrag zu unterschreiben.
B2 noun /ˈɪmɪɡrənt/

immigrant

Einwanderer
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
Die Stadt hat in diesem Jahr viele neue Einwanderer willkommen geheißen.
C1 noun /ɪmˈpɜː.mə.nəns/

impermanence

Vergänglichkeit
Meaning
The state or fact of lasting for only a limited period of time.
Example
The philosophy of Buddhism emphasizes the impermanence of life.
Die buddhistische Philosophie betont die Vergänglichkeit des Lebens.
C2 adjective /ɪnˈfɜːrnəl/

infernal

höllisch
Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
Die Arbeiter beschwerten sich über den höllischen Lärm von der Baustelle.
C1 adjective /ɪmˈpɛndɪŋ/

impending

bevorstehend
Meaning
about to happen soon, usually something unpleasant or threatening
Example
The villagers were worried about the impending flood.
Die Dorfbewohner waren besorgt über die bevorstehende Flut.
C2 noun /ɪnˈvaɪtər/

invitor

Einladender
Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
Der Einladende begrüßte die Gäste am Eingang.
C1 adjective /ˈɪnbɔːrn/

Inborn

angeboren; von Geburt an; inherenz
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
Sie hat ein angeborenes Talent für Musik.
C2 adjective /ɪmˈpɪəriəs/

imperious

imperiös
Meaning
Arrogantly domineering or overbearing.
Example
Her imperious tone made it hard for others to argue.
Ihr imperiöser Ton machte es anderen schwer, zu argumentieren.
C2 noun /ɪˈreɪdiəns/

irradiance

Strahlung
Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
Die Strahlung der Sonne zur Mittagszeit war überwältigend.
C2 adjective /ɪˈnɪm.ɪ.tə.bəl/

inimitable

unvergleichlich
Meaning
So good or unusual as to be impossible to copy; unique.
Example
His inimitable writing style made him a literary legend.
Sein unvergleichlicher Schreibstil machte ihn zu einer literarischen Legende.
A1 noun /ˌɪnfərˈmeɪʃən/

information

Information
Meaning
Facts or knowledge provided or learned about something.
Example
The website provides useful information about travel destinations.
Die Website bietet nützliche Informationen über Reiseziele.
C1 adjective ˌɪn.trəˈspek.tɪv

introspective

introspektiv
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
Schriftsteller neigen dazu, hochgradig introspektive Individuen zu sein.
A2 adjective /ˈɪn.dɔːr/

indoor

innen
Meaning
situated, occurring, or used inside a building
Example
Indoor plants can improve air quality at home.
Zimmerpflanzen können die Luftqualität zu Hause verbessern.
C1 adjective /ˈɪndɪɡoʊ bluː/

Indigo-blue

indigoblau
Meaning
a deep blue color with a purplish tinge
Example
The indigo-blue sky looked magnificent at twilight.
Der indigoblaue Himmel sah bei Dämmerung wunderschön aus.
C1 noun /aɪl/

isle

kleine Insel
Meaning
A small island or peninsula, often poetic or literary.
Example
They spent their honeymoon on a beautiful tropical isle.
Sie verbrachten ihre Hochzeitsreise auf einer wunderschönen tropischen Insel.
C2 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

undurchsichtig
Meaning
Impossible or difficult to see, notice, or distinguish.
Example
The difference between the two shades was almost indiscernible.
Der Unterschied zwischen den beiden Farbtönen war fast undurchsichtig.
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

zwischenmenschlich
Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
Er hat ausgezeichnete zwischenmenschliche Fähigkeiten und kommt gut mit anderen aus.
C1 adjective /ɪnˈæk.tɪv/

Inactive

inaktiv
Meaning
not active; not working; dormant; idle
Example
The volcano has been inactive for over a century.
Der Vulkan ist seit über einem Jahrhundert inaktiv.
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

Isolation
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
Der Patient wurde in Isolation gehalten, um die Ausbreitung der ansteckenden Krankheit zu verhindern.
C1 adjective /ɪˈmoʊbəl/

immobile

unbeweglich
Meaning
unable to move or be moved
Example
After the accident, he was immobile for weeks.
Nach dem Unfall war er wochenlang unbeweglich.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

Inkonstanz
Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
Die Inkonstanz des Wetters erschwert die Planung.
B2 adjective /ɪsˈlɑːmɪk/

islamic

islamisch
Meaning
relating to Islam, its followers, or its teachings
Example
The city has many Islamic cultural centers.
Die Stadt hat viele islamische Kulturzentren.
C1 adjective /ˈɪɡ.ni.əs/

igneous

magmatisch
Meaning
Formed through the cooling and solidification of magma or lava.
Example
Granite is an igneous rock commonly used in construction.
Granit ist ein magmatisches Gestein, das häufig im Bauwesen verwendet wird.
B1 verb /ɪnˈstɔːl/

install

installieren
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
Er hat die neue Software auf seinem Computer installiert.
B2 noun /ˈɪnˌsaɪt/

insight

Einsicht
Meaning
The ability to understand the true nature of something; deep understanding.
Example
Her insight into human behavior made her a successful psychologist.
Ihre Einsicht in menschliches Verhalten machte sie zu einer erfolgreichen Psychologin.
C1 noun /ˌɪnklɪˈneɪʃən/

inclination

Neigung
Meaning
A natural tendency or urge to act or feel in a particular way.
Example
She has an inclination towards helping others.
Sie hat eine Neigung, anderen zu helfen.
C2 adjective ɪˈnɛfəbl

ineffable

unbeschreiblich
Meaning
Too great or extreme to be expressed or described in words.
Example
The beauty of the landscape was ineffable.
Die Schönheit der Landschaft war unbeschreiblich.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

unerfahren
Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
Die unerfahrene Bedienung der Maschine verursachte mehrere Fehler.
C1 adjective /ɪnˈkɒŋɡruəs/

incongruous

inkongruent
Meaning
Not fitting in with or suitable for the surroundings.
Example
His jokes were incongruous during the serious meeting.
Seine Witze waren inkongruent während des ernsten Treffens.
C2 adjective /ˌɪntərˈniːsaɪn/

internecine

innerer Konflikt
Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
Der interne Konflikt schwächte die Organisation von innen
C1 noun /ɪnˌtɪmɪˈdeɪʃən/

intimidation

Einschüchterung
Meaning
The action of frightening or threatening someone to make them do something.
Example
The workers reported cases of intimidation by the management.
Die Arbeiter berichteten über Fälle von Einschüchterung durch das Management.
B2 noun ˈɪn.frəˌstrʌk.tʃər

infrastructure

infrastruktur
Meaning
The basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
Example
Digital infrastructure is vital for future advancements.
Digitale Infrastruktur ist entscheidend für zukünftige Fortschritte.
C2 adjective /ɪnˈsɪpiənt/

incipient

incipient
Meaning
in an initial stage; beginning to develop
Example
The incipient storm made the sky turn dark and heavy.
Der incipiente Sturm ließ den Himmel dunkel und schwer werden.
C1 adjective /ɪnˈsɪstənt/

insistent

nachdrücklich
Meaning
demanding something firmly and refusing to accept no
Example
The child was insistent on getting a new toy.
Das Kind war nachdrücklich, ein neues Spielzeug zu bekommen.
C2 verb /ˌɪntərˈmɪt/

intermit

unterbrechen
Meaning
To suspend or stop for a time; to pause intermittently.
Example
The rain would intermit and then start again.
Der Regen würde unterbrechen und dann wieder beginnen.
B2 adjective /ɪnˈfekʃəs/

infectious

ansteckend
Meaning
capable of causing infection or disease; spreading easily from one person to another; able to spread feelings or attitudes such as enthusiasm
Example
Her infectious laughter made everyone in the room smile.
Ihr ansteckendes Lachen brachte alle zum Lächeln.
A2 noun /ˈɪn.sekt/

Insect

Insekt
Meaning
a small invertebrate animal with six legs and usually one or two pairs of wings
Example
The butterfly is a beautiful insect that flies from flower to flower.
Der Schmetterling ist ein schönes Insekt, das von Blume zu Blume fliegt.
C1 adjective ɪnˈdʒiː.ni.əs

ingenious

genial
Meaning
Showing inventiveness and skill; clever, original, and inventive.
Example
His ingenious ideas transformed modern physics.
Seine genialen Ideen verwandelten die moderne Physik.
C2 verb ˈɪn.kʌl.keɪt

inculcate

einpflanzen
Meaning
Instill an attitude, idea, or habit by persistent instruction; to teach and impress by frequent repetitions.
Example
Parents should inculcate good values in their children.
Eltern sollten ihren Kindern gute Werte einpflanzen.
C2 noun /ɪmˈpruː.dəns/

Imprudence

Unvernunft; Nachlässigkeit; Leichtsinn
Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
Seine finanzielle Unvernunft führte in nur zwei Jahren zur Insolvenz.
C1 noun ˈɪm.pɪ.təs

impetus

Antrieb
Meaning
The force or motivation that drives something forward; momentum.
Example
The new policy provided an impetus for economic growth.
Die neue Politik gab einen Antrieb für das wirtschaftliche Wachstum.
C2 noun /ɪnˈsɪpiəns/

incipience

beginn
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
Das Projekt war noch in seinem Beginn, als die Finanzierung genehmigt wurde.
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

unbestimmt
Meaning
Not exactly known, defined, or established; vague or uncertain.
Example
The project was delayed for an indeterminate amount of time.
Das Projekt wurde für eine unbestimmte Zeit verzögert.
B2 adjective /ɪmˈpɪəriəl/

imperial

imperial
Meaning
Relating to an empire or emperor; having supreme authority.
Example
The imperial palace was a symbol of the emperor's power.
Der imperial Palast war ein Symbol für die Macht des Kaisers.
C1 noun /ˈɪnsɪdəns/

incidence

inzidenz
Meaning
the occurrence, rate, or frequency of something
Example
The incidence of road accidents has decreased this year.
Die Inzidenz von Straßenunfällen ist in diesem Jahr gesenkt worden.
C1 noun /ɪmˈpjʊərəti/

impurity

Unreinheit
Meaning
the state of being unclean or contaminated; a substance that makes something impure
Example
The scientist removed every impurity from the water sample.
Der Wissenschaftler entfernte jede Unreinheit aus der Wasserprobe.
B2 noun /aɪˌdɛntɪfɪˈkeɪʃən/

identification

Identifikation
Meaning
the process of recognizing or proving who or what someone or something is
Example
You need proper identification to enter the building.
Du brauchst eine ordnungsgemäße Identifikation, um das Gebäude zu betreten.
C2 adjective /ɪnˈkoʊətɪv/

inchoative

incipient
Meaning
relating to the beginning of something; in an initial stage
Example
The poet used inchoative expressions to depict the dawn of creation.
Der Dichter benutzte inchoative Ausdrücke, um den Beginn der Schöpfung darzustellen.
C1 adjective /ɪnˈdʌldʒənt/

indulgent

nachsichtig
Meaning
Having a tendency to be overly generous or lenient with someone.
Example
The indulgent mother allowed her child to stay up late.
Die nachsichtige Mutter ließ ihr Kind lange aufbleiben.
A2 adjective /ɪl/

Ill

krank; unwohl; in schlechter Gesundheit
Meaning
sick; unwell; in poor health
Example
He felt ill and decided to stay home from work.
Er fühlte sich krank und entschied sich, von der Arbeit zu Hause zu bleiben.
C1 adjective /ɪmˈprɒbəbl/

improbable

unwahrscheinlich
Meaning
Not likely to be true or to happen.
Example
It seems improbable that he will arrive on time.
Es scheint unwahrscheinlich, dass er pünktlich ankommt.
C2 adjective /ɪnˈtɛmpərət/

intemperate

intemperiert
Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
Die intemperierten Bemerkungen des Politikers verursachten Kontroversen.
C1 noun /ɪmˈpɜːrtɪnəns/

impertinence

Unverschämtheit
Meaning
lack of respect; rudeness
Example
The teacher was shocked by the student's impertinence.
Der Lehrer war schockiert über die Unverschämtheit des Schülers.
A2 noun /ɪŋk/

Ink

Tinte
Meaning
a colored fluid used for writing, drawing, or printing; a dark liquid ejected by cuttlefish
Example
The old fountain pen leaked ink all over his white shirt during the meeting.
Der alte Füller hat Tinte auf sein weißes Hemd während des Treffens verschüttet.
B1 adverb /ɪnˈkrɛdɪbli/

incredibly

unglaublich
Meaning
to a great degree; extremely or unbelievably
Example
The view from the top of the mountain was incredibly beautiful.
Der Blick vom Gipfel des Berges war unglaublich schön.
B2 noun ˈɪn.deks

index

Index
Meaning
An alphabetical list of names, subjects, etc. with references to the places where they occur, typically found at the end of a book; a sign or measure of something.
Example
An index organizes critical data.
Ein Index organisiert wichtige Daten.
A2 adverb /ɪnˈstɛd/

instead

anstatt
Meaning
As an alternative or substitute.
Example
She didn’t buy the dress; instead, she chose a pair of shoes.
Sie hat das Kleid nicht gekauft; stattdessen hat sie ein Paar Schuhe gewählt.
C1 noun /ɪmˈbæl.əns/

Imbalance

Ungleichgewicht
Meaning
lack of proportion or relation between corresponding things; unequal distribution
Example
The doctor said the patient's dizziness was caused by an inner ear imbalance.
Der Arzt sagte, dass die Schwindelgefühle des Patienten durch ein Ungleichgewicht im Innenohr verursacht wurden.
B1 noun /ˌɪntərˈækʃən/

interaction

gegenseitige Interaktion
Meaning
The process of people or things acting upon or influencing each other.
Example
The teacher encouraged more interaction between students.
Der Lehrer förderte mehr Interaktion zwischen den Schülern.
B2 verb /ˌɪntərˈviːn/

intervene

eingreifen
Meaning
To come between people, groups, or events, often to prevent conflict or improve a situation.
Example
The teacher had to intervene to stop the fight between the students.
Der Lehrer musste eingreifen, um den Kampf zwischen den Schülern zu stoppen.
C1 adjective /ˌɪnədˈvɜːrtənt/

inadvertent

unbeabsichtigt, unbeabsichtigt
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
Ihr unbeabsichtigter Fehler verursachte eine Verzögerung im Projekt.
B2 noun /ɪnˈspɛktər/

inspector

inspektor
Meaning
An official employed to ensure regulations are obeyed or standards are met.
Example
The inspector carefully checked the restaurant's kitchen for hygiene standards.
Der Inspektor überprüfte sorgfältig die Küche des Restaurants auf Hygienestandards.
B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

unwiderstehlich
Meaning
too attractive and tempting to be resisted; impossible to resist
Example
The chocolate cake was absolutely irresistible.
Der Schokoladenkuchen war absolut unwiderstehlich.
C2 adjective /ɪˈrɛzəluːt/

irresolute

unentschlossen
Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
Er stand unentschlossen an der Kreuzung und wusste nicht, welchen Weg er nehmen sollte.
C1 adjective /ɪˈnɜːrt/

inert

inaktiv
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
Der Patient blieb regungslos im Bett.
C1 noun /ˌɪnkəmˌpætəˈbɪlɪti/

incompatibility

Inkompatibilität
Meaning
the state of being unable to exist or work together harmoniously; lack of compatibility
Example
The project failed because of incompatibility between the two software systems.
Das Projekt scheiterte wegen der Inkompatibilität zwischen den beiden Softwaresystemen.
B2 adjective /ɪnˈfɔːrmətɪv/

Informative

informativ
Meaning
giving or providing useful information; educational; instructive
Example
The documentary was very informative and educational.
Die Dokumentation war sehr informativ und lehrreich.
C1 adjective, noun /ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

invalid

ungültig
Meaning
Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.
Example
The court declared the contract invalid.
Das Gericht erklärte den Vertrag für ungültig.
C1 noun /ˈɪntrɪkəsi/

intricacy

Komplexität
Meaning
the quality of being very detailed or complicated
Example
The intricacy of the design impressed everyone.
Die Komplexität des Designs beeindruckte alle.
C2 adjective /ˈɪm.pi.əs/

Impious

gotteslästerlich; ungläubig
Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
Die gotteslästerliche Handlung schockierte die religiöse Gemeinschaft.
B2 verb /ˈɪr.ɪ.teɪt/

irritate

ärgern
Meaning
To make someone annoyed or angry; to cause discomfort or inflammation.
Example
Rubbing your eyes can irritate them.
Wenn du deine Augen reibst, kann es sie reizen.
C2 noun /ɪˈluːmɪnənt/

illuminant

Beleuchtung
Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
Die Lampe fungierte als Beleuchtung in der dunklen Höhle.
B2 verb ɪnˈvɛst.ɪŋ

investing

investieren
Meaning
The act of putting money into financial schemes, shares, property, or a commercial venture with the expectation of achieving a profit.
Example
Investing in stocks can generate long-term wealth.
Investieren in Aktien kann langfristigen Reichtum generieren.
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

unbequem; störend; problematisch
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
Der kaputte Aufzug machte es unbequem, den obersten Stock zu erreichen.
C1 verb ɪˈnɪʃɪeɪtɪd

initiated

initiiert
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
Das Projekt wurde initiiert, um die marine Biodiversität zu verbessern.
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

Geliebte
Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
Er schrieb ein Gedicht, das seiner Geliebten gewidmet war.
C2 noun /ˌɪnkrɪˈdjuːləti/

incredulity

Unglauben
Meaning
the state of being unwilling or unable to believe something
Example
She looked at him with incredulity after hearing the strange story.
Sie sah ihn mit Unglauben an, nachdem sie die seltsame Geschichte gehört hatte.
C2 noun /ˈɪl.i.æd/

iliad

Ilias
Meaning
An ancient Greek epic poem attributed to Homer, describing the events of the Trojan War.
Example
Students studied the Iliad to understand Greek mythology and heroism.
Die Studenten studierten die Ilias, um die griechische Mythologie und den Heroismus zu verstehen.
C1 noun ɪnˈsɛpʃən

inception

Inception
Meaning
The establishment or starting point of an institution or activity.
Example
The inception of the company marked a new era in the industry.
Die Inception des Unternehmens markierte eine neue Ära in der Industrie.
C2 verb /ˈɪntərˌdɪkt/

interdict

verbieten
Meaning
to prohibit or forbid something by authoritative order, often by law or decree
Example
The court moved to interdict the sale of the illegal goods.
Das Gericht beschloss, den Verkauf der illegalen Waren zu verbieten.
B2 adjective /ˈaɪsi/

Icy

eisig; extrem kalt; feindlich
Meaning
extremely cold; covered with ice; unfriendly or hostile
Example
The icy wind made everyone shiver.
Der eisige Wind ließ alle zittern.
C2 noun /ɪnˈɛrənsi/

inerrancy

Unfehlbarkeit
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
Einige religiöse Gruppen bekräftigen nachdrücklich die Unfehlbarkeit ihrer heiligen Schriften.
C1 adjective /ɪˈnɒkjuəs/

innocuous

harmlos
Meaning
Not harmful or offensive.
Example
His remark was completely innocuous and not meant to offend anyone.
Seine Bemerkung war völlig harmlos und nicht dazu gedacht, jemanden zu beleidigen.
C1 noun /ɪnˈfɜː.mə.ti/

Infirmity

Schwäche; Krankheit; Gebrechlichkeit
Meaning
physical or mental weakness; a disease or ailment; frailty
Example
Despite his advanced age and various infirmities, he remained mentally sharp and alert.
Trotz seines fortgeschrittenen Alters und verschiedener Gebrechen blieb er geistig scharf und wachsam.
C1 adjective ɪnˈsaɪ.sɪv

incisive

scharfsinnig
Meaning
Intelligently analytical and clear-thinking; showing clear thought and good understanding of what is important.
Example
His incisive comments revealed the core issues.
Seine scharfsinnigen Kommentare enthüllten die Kernprobleme.
C1 noun /ˌɪnkɑːrˈneɪʃən/

incarnation

Inkarnation
Meaning
the embodiment of a deity, spirit, or quality in a physical form
Example
The monk was considered the incarnation of compassion.
Der Mönch wurde als die Inkarnation des Mitgefühls betrachtet.
C1 noun /ɪmˈprɪzənmənt/

imprisonment

Inhaftierung
Meaning
the act of putting someone in prison; the state of being confined as punishment
Example
He faced imprisonment for violating the court order.
Er musste wegen Missachtung der Gerichtsordnung mit Inhaftierung rechnen.
C1 noun /ɪnˈkɜːrʒən/

incursion

Invasion
Meaning
A sudden attack or invasion into a place or territory.
Example
The army repelled the enemy incursion at the border.
Die Armee schlug die feindliche Invasion an der Grenze zurück.
C1 noun /ɪnˈdɪɡ.nə.ti/

Indignity

Indignität; Demütigung; Erniedrigung;
Meaning
treatment or circumstances that cause one to feel shame or loss of dignity; humiliation
Example
She refused to suffer the indignity of being searched without proper cause.
Sie weigerte sich, die Indignität zu ertragen, ohne einen triftigen Grund durchsucht zu werden.
C1 adjective /ɪˈluː.sɪv/

Illusive

trügerisch; scheinbar existierend, aber nicht real; täuschend
Meaning
deceptive; appearing to exist but not real; misleading
Example
The promise of easy money proved to be illusive and misleading.
Das Versprechen von leichtem Geld erwies sich als trügerisch und täuschend.
C2 adjective /ˌaɪ.kə.nəˈklæs.tɪk/

iconoclastic

gekennzeichnet durch das Angreifen oder Ablehnen von etablierten Überzeugungen, Traditionen oder Werten
Meaning
Characterized by attacking or rejecting cherished beliefs, traditions, or established values.
Example
Her iconoclastic views challenged the conventional wisdom of the industry.
Ihre ikonoklastischen Ansichten stellten die konventionelle Weisheit der Branche in Frage.