interoperability
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C1 noun /ˌɪntərˌɒpərəˈbɪləti/

interoperability

Interoperabilität
Meaning
The ability of computer systems or software to exchange and make use of information.
Example
The interoperability of different software systems ensures seamless workflow.
Die Interoperabilität verschiedener Softwaresysteme gewährleistet einen nahtlosen Arbeitsablauf.
C1 adjective /ˌɪndɪˈspjuːtəbəl/

Indisputable

unbestreitbar; unbestreitbar; sicher
Meaning
impossible to deny or argue against; undeniable; certain
Example
The evidence against him was indisputable.
Die Beweise gegen ihn waren unbestreitbar.
B1 adjective /ɪnˈfɔːrməl/

Informal

informell; entspannt; locker
Meaning
relaxed and friendly; not official or ceremonial; casual
Example
The meeting was informal and relaxed.
Das Treffen war informell und entspannt.
C2 noun /ɪnˈtɜːrstɪs/

interstice

Spalt
Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
Das Licht filterte durch die schmalen Spalten der Wand.
A2 adjective ˌɪn.təˈnæʃ.ən.əl

international

international
Meaning
Existing, occurring, or carried on between two or more nations and their citizens.
Example
International standards improve competitiveness.
Internationale Standards verbessern die Wettbewerbsfähigkeit.
C1 adjective /ɪnˈveə.ri.ə.bəl/

Invariable

unveränderlich; konstant; immer gleich
Meaning
never changing; constant; always the same
Example
His invariable routine includes morning exercise and coffee.
Seine unveränderliche Routine umfasst morgendliche Übungen und Kaffee.
B2 noun /ɪnˈsen.tɪv/

Incentive

Anreiz; Ansporn
Meaning
a thing that motivates or encourages someone to do something; a reward or penalty that influences behavior
Example
The company offered a cash incentive to employees who exceeded their sales targets.
Das Unternehmen bot den Mitarbeitern, die ihre Verkaufsziele übertroffen haben, einen Geldanreiz an.
B2 verb ˈɪmplɪment

implement

umsetzen
Meaning
To put a decision or plan into effect; to execute or apply.
Example
Implementing educational policies is essential for progress.
Es ist entscheidend, Bildungspolitiken umzusetzen, um Fortschritte zu erzielen.
C2 noun /ˌɪnvəˈkeɪʃən/

invocation

Anrufung
Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
Die Zeremonie begann mit einer Anrufung der Götter.
C2 adjective /ɪnˈdɛkərəs/

indecorous

indekorös
Meaning
Not in keeping with good taste and propriety; improper.
Example
His indecorous behavior shocked the audience.
Sein indekoröses Verhalten schockierte das Publikum.
C2 noun /ɪmˈpjuːɪsəns/

impuissance

Ohnmacht, Unfähigkeit
Meaning
inability to take effective action; helplessness
Example
The government’s impuissance in the face of crisis frustrated the people.
Die Ohnmacht der Regierung angesichts der Krise frustrierte die Bevölkerung.
C2 noun /ˌɪnkænˈdɛsəns/

incandescence

Infrarotstrahlung
Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
Die Infrarotstrahlung der Kerze füllte den dunklen Raum.
C1 adjective /ɪnˈvæljʊəbl/

invaluable

unbezahlbar
Meaning
Extremely useful or indispensable.
Example
Her advice proved invaluable to my success.
Ihr Rat erwies sich als unbezahlbar für meinen Erfolg.
C2 adjective /ˌɪrɪˈtriːvəbl/

irretrievable

unwiederbringlich
Meaning
impossible to recover or regain
Example
The documents were lost in an irretrievable way after the fire.
Die Dokumente wurden nach dem Brand auf unwiederbringliche Weise verloren.
C1 adjective /ˌɪnədˈvaɪzəbl/

inadvisable

nicht ratsam
Meaning
Not recommended; likely to have undesirable consequences.
Example
It is inadvisable to drive in such heavy rain.
Es ist nicht ratsam, bei solchem starken Regen zu fahren.
B2 noun /ˈaɪrəni/

irony

Ironie
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
Die Ironie der Situation war, dass der Gewinner seinen eigenen Preis vergessen hatte.
B1 adjective /ˌɪmpəˈlaɪt/

impolite

unhöflich
Meaning
Not showing good manners; rude.
Example
It is impolite to interrupt someone while they are speaking.
Es ist unhöflich, jemanden zu unterbrechen, während er spricht.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

Ungültigkeit
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
Das Gericht entschied, dass der Vertrag ungültig war.
B2 noun /ɪnˈventər/

inventor

Erfinder
Meaning
a person who creates or designs something new, especially a device, method, or process
Example
The inventor patented her new medical device.
Der Erfinder ließ sein neues medizinisches Gerät patentieren.
C1 adjective /ˈɪnsjələr/

insular

engstirnig, inselbezogen
Meaning
Narrow-minded, isolated, or relating to an island.
Example
The community was criticized for its insular attitudes toward outsiders.
Die Gemeinschaft wurde für ihre insularen Einstellungen gegenüber Außenseitern kritisiert.
B1 noun ɪmˈpruːv.mənts

improvements

Verbesserungen
Meaning
The action of making or becoming better; an instance of something becoming or being made better.
Example
Continuous improvements increase productivity.
Kontinuierliche Verbesserungen steigern die Produktivität.
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.
B1 noun /ɪnˈstrʌktər/

instructor

instruktor
Meaning
A person who teaches a subject or skill.
Example
The driving instructor was very patient with new learners.
Der Fahrlehrer war sehr geduldig mit den neuen Schülern.
C2 adjective /ˌɪrɛvəˈrɛnʃəl/

irreverential

irreverent
Meaning
Showing a lack of respect for things that are generally taken seriously.
Example
His irreverential humor often shocked traditional audiences.
Sein irreverenter Humor schockierte oft traditionelle Zuschauer.
C2 noun /ˌɪn.ɪˈbraɪ.ə.ti/

inebriety

Trunkenheit
Meaning
the state of being drunk or intoxicated
Example
His frequent inebriety led to the loss of his job.
Seine häufige Trunkenheit führte zum Verlust seiner Arbeit.
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.
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 verb /ɪnˈvælɪdeɪt/

invalidate

ungültig machen
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
Die neuen Beweise könnten das vorherige Urteil ungültig machen.
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.
C2 adjective /ˌɪm.pəˈfɛk.tə.bəl/

imperfectible

unperfektibel
Meaning
Incapable of being made perfect or complete.
Example
Some human qualities are considered imperfectible.
Einige menschliche Eigenschaften gelten als unperfektibel.
C1 noun ˌɪndɪˈspensəbl səˈpɔːrt

indispensable support

unverzichtbare Unterstützung
Meaning
Essential assistance that cannot be done without; absolutely necessary help.
Example
Volunteers provide indispensable support to communities.
Freiwillige leisten unverzichtbare Unterstützung für Gemeinschaften.
A1 noun /ˈaɪs kriːm/

Ice-cream

eiscreme
Meaning
a frozen sweet dessert made from dairy products, usually served cold
Example
Children love to eat ice-cream on hot summer days.
Kinder essen gerne Eiscreme an heißen Sommertagen.
C2 adjective /ɪnˈsɛnseɪt/

insensate

gefühllos
Meaning
lacking physical sensation or empathy; without feeling or sensitivity
Example
The dictator's insensate cruelty shocked the world.
Die gefühllose Grausamkeit des Diktators schockierte die Welt.
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

analphabet; ungebildet; unwissend
Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
Das Programm zielt darauf ab, analphabetische Erwachsene beim Lernen von Lesen und Schreiben zu unterstützen.
C2 adjective /ɪmˈpɛn.ɪ.tənt/

impenitent

unbußfertig
Meaning
Not feeling regret or shame about one's actions.
Example
The criminal remained impenitent after the trial.
Der Kriminelle blieb unbußfertig nach dem Prozess.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

zunehmend
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
Die Menschen sind zunehmend besorgt über den Klimawandel.
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 /ɪmˈpæsɪv/

impassive

passiv
Meaning
Not showing or feeling emotion; expressionless.
Example
Despite the shocking news, she remained impassive.
Trotz der schockierenden Nachrichten blieb sie passiv.
C2 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

Ichthyologe
Meaning
A scientist who studies fish.
Example
The ichthyologist discovered a new species of fish in the river.
Der Ichthyologe entdeckte eine neue Fischart im Fluss.
C2 noun (compound/erroneous entry) /ɪnˈɛksərəbl ɑːrmi/

inexorableinexorablearmy

unaufhaltsame Armee
Meaning
This appears to be a corrupted or concatenated form; interpreted as 'inexorable army' — an unstoppable or relentless force.
Example
The rebels feared the inexorable army approaching their stronghold.
Die Rebellen fürchteten die unaufhaltsame Armee, die sich ihrer Festung näherte.
B1 adjective /ɪˈmiːdiət/

immediate

sofort
Meaning
happening or done without delay
Example
The doctor gave her immediate attention.
Der Arzt gab ihr sofortige Aufmerksamkeit.
B2 adjective /ɪnˈfɪə.ri.ər/

inferior

minderwertig
Meaning
Of lower quality, rank, or status.
Example
This material is inferior to the one we used before.
Dieses Material ist minderwertiger als das, das wir vorher verwendet haben.
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.
C1 verb /ɪmˈpɒvərɪʃ/

impoverish

verarmen
Meaning
To make someone poor or reduce the quality or richness of something.
Example
The long war impoverished the entire nation.
Der lange Krieg hat die ganze Nation verarmt.
C1 verb /ɪˈluːmɪneɪt/

illuminate

beleuchten
Meaning
To light up or make something clearer.
Example
Streetlights illuminate the road at night.
Straßenlaternen beleuchten die Straße in der Nacht.
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 verb ˈɪnʌndeɪt

inundate

überschwemmen, jemanden oder etwas mit Dingen oder Menschen überfluten, die bearbeitet werden müssen
Meaning
To flood; overwhelm someone or something with things or people to be dealt with
Example
The company was inundated with requests after the advertisement.
Das Unternehmen wurde nach der Werbung mit Anfragen überflutet.
C2 adjective /ɪnˈtɛsteɪt/

intestate

ohne Testament gestorben
Meaning
Having died without leaving a valid will.
Example
She died intestate, so her assets were distributed by law.
Sie ist ohne Testament gestorben, daher wurde ihr Vermögen nach dem Gesetz verteilt.
B2 noun ɪnˈtɛɡrɪti

integrity

integrität
Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
Die Integrität der Lehrer fördert ein positives Lernumfeld.
C1 verb /ˈɪmplɪˌkeɪt/

implicate

involvieren
Meaning
To show someone’s involvement in a crime or wrongdoing.
Example
The evidence implicated several officials in the scandal.
Die Beweise implierten mehrere Beamte in den Skandal.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

nicht brennbar
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
Dieses Material ist incombustibel und sicher für den Bau.
B2 verb /ɪnˈfɜːr/

infer

schließen
Meaning
to conclude or deduce something from evidence and reasoning rather than from explicit statements
Example
From his silence, I inferred that he was not happy with the decision.
Aus seiner Stille schloss ich, dass er mit der Entscheidung nicht zufrieden war.
B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

Indikation; Zeichen
Meaning
a sign or piece of information that indicates something; a suggestion or hint
Example
The dark clouds were a clear indication that a storm was approaching the area.
Die dunklen Wolken waren ein deutliches Zeichen dafür, dass ein Sturm sich der Gegend näherte.
A1 adjective /ˈɪntrəstɪŋ/ or /ˈɪntəˌrɛstɪŋ/

interesting

interessant
Meaning
Arousing curiosity or attention; holding one’s interest.
Example
The documentary about space was very interesting.
Die Dokumentation über den Weltraum war sehr interessant.
C2 noun /ɪnˈɡrætɪˌtjuːd/

ingratitude

Undankbarkeit
Meaning
Lack of gratitude; failure to show thanks or appreciation.
Example
His ingratitude hurt her feelings after all she had done for him.
Seine Undankbarkeit tat ihr weh, nachdem sie so viel für ihn getan hatte.
C1 adjective /ɪnˈflæməbəl/

Inflammable

entzündlich; brennbar
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
Das entzündliche Material brannte schnell.
C1 adjective /ɪnˈdʒʊəriəs/

injurious

schädlich
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
Rauchen ist schädlich für die Gesundheit.
C2 noun /ˌɪnkəˈpæsəti/

incapacity

Inkapazität
Meaning
the lack of ability, power, or fitness to do something
Example
His mental incapacity prevented him from making important decisions.
Seine geistige Inkapazität hinderte ihn daran, wichtige Entscheidungen zu treffen.
B2 verb /ɪnˈdʌldʒ/

indulge

sich hingeben
Meaning
to allow oneself to enjoy something enjoyable, often excessively
Example
He indulged in a piece of chocolate cake after dinner.
Er hat nach dem Abendessen ein Stück Schokoladenkuchen genossen.
C1 adjective /ˌɪntəˈrɑːɡətɪv/

interrogative

interrogativ
Meaning
Relating to or conveying a question; in grammar, used to form questions.
Example
She raised an interrogative eyebrow when she heard the news.
Sie hob eine interrogative Augenbraue, als sie die Nachricht hörte.
B2 adjective /ɪmˈplɪsɪt/

implicit

implizit
Meaning
Suggested or understood without being directly stated.
Example
Her trust in him was implicit.
Ihr Vertrauen in ihn war implizit.
C1 noun /ˌɪn.dɪˈsɪʒ.ən/

Indecision

Unentschlossenheit; Zweifel; Zögern
Meaning
the inability to make decisions quickly; uncertainty about what to do
Example
Her indecision about which job offer to accept caused her to miss both opportunities.
Ihre Unentschlossenheit, welches Jobangebot sie annehmen sollte, führte dazu, dass sie beide Gelegenheiten verpasste.
B2 adjective /ɪnˈtækt/

intact

intakt
Meaning
Remaining whole, complete, and undamaged.
Example
Despite the storm, the old house remained intact.
Trotz des Sturms blieb das alte Haus intakt.
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.
C2 verb /ˈɪŋkʌlpeɪt/

inculpate

beschuldigen
Meaning
To blame or accuse someone of wrongdoing.
Example
The evidence seemed to inculpate the suspect in the crime.
Die Beweise schienen den Verdächtigen im Verbrechen zu beschuldigen.
B2 adverb /ɪmˈpeɪʃəntli/

impatiently

ungeduldig
Meaning
in a manner showing annoyance or restlessness due to delay or waiting
Example
She tapped her fingers impatiently while waiting for the reply.
Sie klopfte ungeduldig mit den Fingern, während sie auf die Antwort wartete.
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.
C1 noun /ɪnˈkɒmpɪtəns/

incompetence

Inkompetenz
Meaning
Lack of ability, skill, or effectiveness in doing something.
Example
The project failed due to the manager’s incompetence.
Das Projekt scheiterte aufgrund der Inkompetenz des Managers.
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.
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

Glück
Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

Idealismus
Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
Sein jugendlicher Idealismus motivierte ihn, sich verschiedenen sozialen Gerechtigkeitsbewegungen anzuschließen.
A2 verb /ɪˈmædʒɪn/

imagine

vorstellen
Meaning
to form a mental image of; to believe something unreal to be true
Example
Can you imagine living in a different country?
Kannst du dir vorstellen, in einem anderen Land zu leben?
C2 adjective /aɪˈtɪnərənt/

itinerant

reisend
Meaning
Traveling from place to place, especially for work or duty.
Example
The itinerant teacher moved from village to village to educate children.
Der reisende Lehrer zog von Dorf zu Dorf, um Kinder zu unterrichten.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

unbedeutend
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
Die Kosten waren so unbedeutend, dass niemand sie bemerkte.
C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

Indigene Traditionen
Meaning
Cultural practices, beliefs, and customs that have been passed down through generations among native peoples.
Example
Indigenous traditions in the Chittagong Hill Tracts are unique.
Die indigenen Traditionen in den Chittagong Hill Tracts sind einzigartig.
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.
C1 adjective /ɪˈneɪn/

inane

unsinnig, dumm
Meaning
lacking sense, meaning, or significance; silly or pointless
Example
The movie was criticized for its inane dialogue.
Der Film wurde für seine unsinnigen Dialoge kritisiert.
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

verantwortungslos
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
Es war verantwortungslos von ihm, ohne jemandem Bescheid zu sagen zu gehen.
B2 noun /ˈɪdɪət/

idiot

Idiot
Meaning
a person who acts in a way that is considered very stupid or foolish
Example
He acted like an idiot at the party last night.
Er benahm sich wie ein Idiot auf der Party letzte Nacht.
C2 verb /ɪnˈhjuːm/

inhume

begraben
Meaning
to bury a dead body in the ground
Example
They inhumed the warrior with full honors.
Sie begruben den Krieger mit voller Ehre.
B2 noun /ɪnˈkluːʒən/

inclusion

Inklusion
Meaning
the action or state of including or being included within a group or structure
Example
Diversity and inclusion are key values in modern workplaces.
Vielfalt und Inklusion sind wichtige Werte in modernen Arbeitsplätzen.
B2 noun ɪnˈsɛntɪvz

incentives

Anreize
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
Steueranreize werden verwendet, um Investitionen in erneuerbare Energien zu fördern.
C1 adjective /ɪmˈpɜːrsənl/

impersonal

unpersönlich
Meaning
not influenced by, showing, or involving personal feelings; lacking human warmth or emotion
Example
The letter was written in a very impersonal style.
Der Brief wurde in einem sehr unpersönlichen Stil geschrieben.
C2 adjective /ɪnˈkoʊ.ɪt/ or /ɪnˈkoʊ.eɪt/

inchoate

unvollständig
Meaning
Just begun and not fully formed; rudimentary.
Example
His inchoate ideas needed more research to be developed.
Seine unvollständigen Ideen benötigten mehr Forschung, um weiterentwickelt zu werden.
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.
B2 noun /ɪnˈtɪəriər/

interior

Innenraum
Meaning
the inside part of something; inner area of a place or object
Example
The interior of the hotel was beautifully decorated.
Der Innenraum des Hotels war wunderschön dekoriert.
C2 noun /ˌɪnkrʌˈsteɪʃən/

incrustation

Kruste
Meaning
a crust or hard coating formed on the surface of something
Example
The old pipes were blocked due to heavy incrustation of minerals.
Die alten Rohre waren aufgrund einer starken Verkrustung von Mineralien blockiert.
B1 adjective ɪnˈdʌs.tri.əl

industrial

industriell
Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
Industrielle Sektoren steigern den Export.
C2 verb /ˌɪmpɔːrˈtuːnd/

importuned

aufdringlich bitten
Meaning
asked someone persistently and pressingly for something
Example
She importuned her boss for a raise until he finally gave in.
Sie bat aufdringlich um eine Gehaltserhöhung bei ihrem Chef, bis er schließlich nachgab.
C2 noun /ɪnˈtɛɡ.jʊ.mənt/

integument

äußere Hülle
Meaning
A natural outer covering, such as skin, shell, or rind.
Example
The snake sheds its integument as it grows.
Die Schlange verliert ihre äußere Hülle, wenn sie wächst.
C2 verb /ɪˈniː.bri.eɪt/

inebriate

betrinken
Meaning
to intoxicate; to make someone drunk
Example
The strong wine was enough to inebriate even the most experienced drinker.
Der starke Wein war genug, um sogar den erfahrensten Trinker zu betrunken.
C1 noun /ɪnˈdɪf.ər.əns/

Indifference

indifferenz; gleichgültigkeit; apathie
Meaning
lack of interest, concern, or sympathy; the state of not caring about something
Example
His indifference to his studies resulted in poor grades throughout the semester.
Seine Indifferenz gegenüber seinen Studien führte zu schlechten Noten im gesamten Semester.
C1 adjective /ˈɪnfəməs/

infamous

berüchtigt
Meaning
well known for some bad quality or deed
Example
The dictator was infamous for his cruelty.
Der Diktator war berüchtigt für seine Grausamkeit.
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 verb /ɪnˈkwaɪər/

inquire

fragen
Meaning
to ask; to investigate
Example
She inquired about the job opening.
Sie fragte nach der Stellenanzeige.
C1 verb /ɪmˈpɑːrt/

impart

vermitteln
Meaning
to make information known; to bestow or communicate
Example
The teacher imparted valuable knowledge to her students.
Der Lehrer vermittelte wertvolles Wissen an seine Schüler.
C1 adjective /ˈɪnərmoʊst/

Innermost

am tiefsten; persönlichster
Meaning
most private and secret; deepest; most personal
Example
She shared her innermost feelings with her closest friend.
Sie teilte ihre tiefsten Gefühle mit ihrem engsten Freund.
C2 adjective /ˌɪn.trəˈsɛl.jʊ.lər/

intracellular

innerhalb der Zelle
Meaning
Located or occurring within a cell.
Example
The drug works by targeting intracellular bacteria.
Das Medikament wirkt, indem es intrazelluläre Bakterien anvisiert.
C2 noun /ˈɪnsələns/

insolence

Unverschämtheit
Meaning
rude or disrespectful behavior
Example
The teacher was shocked by the student's insolence.
Der Lehrer war schockiert über die Unverschämtheit des Schülers.
C2 adjective /ˌɪnfɪnɪˈtɛsɪməl/

infinitesimal

unmerklich
Meaning
Extremely small in size or amount; so tiny as to be almost negligible.
Example
The error was so infinitesimal that it didn’t affect the results.
Der Fehler war so unmerklich, dass er die Ergebnisse nicht beeinflusste.
B2 verb /ɪnˈsɜːrt/

insert

einsetzen
Meaning
to put or place something into something else
Example
Please insert the key into the lock.
bitte stecken Sie den Schlüssel in das Schloss.
C2 noun /ˈɪnfəmi/

infamy

Glück
Meaning
the state of being well known for some bad quality or deed
Example
His name will live in infamy for the crimes he committed.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
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 adjective, noun /ɪnˈdɪkətɪv/

indicative

indikativ
Meaning
Serving as a sign or expression of something; in grammar, a mood used to make factual statements.
Example
His tone was indicative of his frustration.
Sein Ton war indikativ für seine Frustration.
C2 noun /ɪnˈsuːsiəns/

insouciance

Sorglosigkeit
Meaning
Casual lack of concern; indifference.
Example
She carried herself with an air of insouciance, unbothered by the challenges ahead.
Sie ging mit einer Haltung der Sorglosigkeit, unbesorgt über die bevorstehenden Herausforderungen.
B2 noun /ɪnˈtɜː.prə.tər/

Interpreter

Dolmetscher; Übersetzer;
Meaning
a person who translates orally from one language into another; someone who explains meaning
Example
The international conference hired professional interpreters to translate speeches in real time.
Die internationale Konferenz engagierte professionelle Dolmetscher, um Reden in Echtzeit zu übersetzen.
C1 adjective /ɪˈrɛvərənt/

irreverent

respektlos
Meaning
showing a lack of respect for people or things that are usually respected
Example
The comedian’s irreverent jokes offended some of the audience.
Die respektlosen Witze des Komikers haben einige Zuschauer beleidigt.
C2 noun /ˌɪnjuːˈɛndəʊ/

innuendo

Andeutung
Meaning
An allusive or oblique remark or hint, typically a suggestive or disparaging one.
Example
The manager's innuendo was directed towards his competitor.
Die Andeutung des Managers war an seinen Konkurrenten gerichtet.
B2 noun /ɪnˈsaɪdə/

insider

Insider
Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
Er war ein Insider, der alle Geheimnisse der Firma kannte.
C1 adjective /ɪnˈstrʌktɪv/

instructive

instruktiv
Meaning
useful and informative; providing knowledge or instruction
Example
The lecture was highly instructive and engaging.
Der Vortrag war sehr lehrreich und fesselnd.
B2 noun /ˈɪnˌteɪk/

intake

aufnahme
Meaning
the process of taking something in, especially food or drink
Example
He monitored his daily intake of calories to maintain a healthy diet.
Er überwachte seine tägliche Kalorienaufnahme, um eine gesunde Ernährung beizubehalten.
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

sofortig
Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
Die Temperaturänderung war fast sofortig.
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.
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 /ɪnˈsɪst/

insist

bestehen
Meaning
to demand firmly; to state persistently
Example
He insisted on paying the bill.
Er bestand darauf, die Rechnung zu bezahlen.
C1 noun /ˈɪntərˌpleɪ/

interplay

Wechselwirkung
Meaning
The way in which two or more things have an effect on each other.
Example
The interplay between culture and technology shapes modern life.
Die Wechselwirkung zwischen Kultur und Technologie prägt das moderne Leben.
C1 adjective /ˌɪnkənˈsiːvəbl̩/

inconceivable

unvorstellbar
Meaning
Impossible to imagine or believe; beyond comprehension.
Example
It seemed inconceivable that she could finish the marathon after such little training.
Es schien unvorstellbar, dass sie den Marathon nach so wenig Training beenden könnte.
B2 noun /ˈɪntərvəl/

interval

intervall
Meaning
a period of time between two events or points; a pause or break in activity
Example
There was a short interval between the two performances.
Es gab ein kurzes Intervall zwischen den beiden Aufführungen.
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 verb /ɪnˈfrɪndʒ/

infringe

verletzen
Meaning
To actively break the terms of a law, agreement, or right.
Example
Copying this software without permission will infringe copyright laws.
Das Kopieren dieser Software ohne Erlaubnis wird gegen das Urheberrecht verstoßen.
C2 noun /ˌɪnsjəˈlærəti/

insularity

Insularität
Meaning
The state of being isolated or narrow-minded.
Example
The insularity of the group prevented them from accepting new ideas.
Die Insularität der Gruppe verhinderte es, neue Ideen zu akzeptieren.