impetus
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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.
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.
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.
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.
C2 adjective /ɪmˈpræktɪkəbl/

impracticable

unpraktisch
Meaning
Not capable of being carried out or put into practice.
Example
The plan seemed impracticable due to limited resources.
Der Plan schien aufgrund begrenzter Ressourcen unpraktisch zu sein.
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.
C1 noun ɪˌræʃ.ənˈæl.ɪ.ti

irrationality

Irrationalität, Unvernunft, Unlogik
Meaning
The quality of being illogical or unreasonable; lack of rational thought.
Example
His decision was driven by complete irrationality.
Seine Entscheidung war von völliger Irrationalität getrieben.
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.
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

inkubieren
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
Das Huhn wird die Eier inkubieren, bis sie schlüpfen.
C2 adjective /ɪˈrædɪkəbəl/

irradicable

irradikabel
Meaning
not able to be eradicated; impossible to destroy or remove completely
Example
The love of a mother for her child is irradicable.
Die Liebe einer Mutter zu ihrem Kind ist irradikabel.
C2 adjective /ɪnˈvɛtərət/

inveterate

eingefleischt
Meaning
having a long-established habit, activity, or interest that is unlikely to change
Example
He is an inveterate reader who spends hours in the library every day.
Er ist ein eingefleischter Leser, der jeden Tag Stunden in der Bibliothek verbringt.
C2 noun /ˌɪnsəˈrɛkʃən/

insurrection

aufstand
Meaning
A violent uprising against an authority or government.
Example
The army was called in to suppress the insurrection.
Die Armee wurde gerufen, um den Aufstand zu unterdrücken.
B2 noun ˈɪnəveɪtɪv tuːlz

innovative tools

innovative Werkzeuge
Meaning
Creative devices or advanced technologies that introduce new methods or approaches to accomplish tasks.
Example
Teachers use innovative tools to enhance classroom learning.
Lehrer verwenden innovative Werkzeuge, um das Lernen im Klassenzimmer zu verbessern.
C1 verb /ɪnˈfjuːz/

infuse

infundieren
Meaning
to fill or spread through something; to instill a quality, idea, or feeling
Example
The teacher tried to infuse her students with a love for reading.
Die Lehrerin versuchte, ihren Schülern eine Liebe zum Lesen zu infundieren.
C1 noun /ɪnˈsɜːrdʒəns/

insurgence

Aufstand
Meaning
An act of rebellion or uprising against authority.
Example
The government struggled to contain the growing insurgence.
Die Regierung hatte Schwierigkeiten, den wachsenden Aufstand zu bekämpfen.
C2 adjective /ɪnˈɛksərəbl/

inexorable

unaufhaltsam
Meaning
Impossible to stop or prevent; relentless.
Example
The inexorable rise of technology is changing every aspect of life.
Der unaufhaltsame Aufstieg der Technologie verändert jeden Aspekt des Lebens.
C2 noun /ɪnˈtɛmpərəns/

intemperance

Intemperanz
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
Seine Intemperanz beim Trinken ruinierte seine Gesundheit.
C2 adjective /ɪmˈprɒvɪdənt/

improvident

unbedacht
Meaning
Not having or showing foresight; spending wastefully or without thought for the future.
Example
His improvident habits left him with no savings.
Seine unbedachten Gewohnheiten ließen ihn ohne Ersparnisse zurück.
B1 noun ˌɪn.stɪˈtjuː.ʃən

institution

Institution
Meaning
An organization founded and united for a specific purpose; an established law, practice, or custom.
Example
Institutions play a crucial role in governance.
Institutionen spielen eine entscheidende Rolle in der Regierungsführung.
B2 adjective /ɪnˈædɪkwət/

inadequate

unzureichend
Meaning
Not sufficient or good enough.
Example
The funding was inadequate to complete the project.
Die Finanzierung war unzureichend, um das Projekt abzuschließen.
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.
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.
B2 verb /ɪmˈplaɪ/

imply

andeuten
Meaning
To suggest something without directly stating it.
Example
Her tone seemed to imply that she was upset.
Ihr Ton schien zu implizieren, dass sie verärgert war.
A2 noun /ˈaɪ.lənd/

Island

Insel
Meaning
a piece of land completely surrounded by water
Example
We visited a beautiful island during our vacation.
Wir haben während unseres Urlaubs eine schöne Insel besucht.
B2 verb /ɪnˈkwaɪər/

inquire

fragen
Meaning
to ask; to investigate
Example
She inquired about the job opening.
Sie fragte nach der Stellenanzeige.
B2 noun /ɪnˈtɛnsəti/

intensity

intensität
Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
Die Intensität des Sturms erschreckte die Dorfbewohner.
C1 adjective ɪnˈkʌm.bənt

incumbent

verpflichtend
Meaning
necessary for (someone) as a duty or responsibility.
Example
It is incumbent upon all citizens to obey the law.
Es ist für alle Bürger verpflichtend, das Gesetz zu befolgen.
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

unzerlegbar
Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
Der Bruch 3/7 ist unzerlegbar.
C1 adjective /ɪnˈdetɪd/

Indebted

verschuldet; dankbar
Meaning
owing money or gratitude to someone; obligated; grateful
Example
I am deeply indebted to my teacher for all her guidance.
Ich bin meiner Lehrerin tief verbunden für ihre ganze Führung.
C1 noun /ˈɪn.floʊ/

inflow

Zufluss
Meaning
The movement of things such as money, people, or water into a place.
Example
The inflow of tourists boosted the local economy.
Der Zufluss von Touristen hat die lokale Wirtschaft angekurbelt.
C2 adjective /ɪnˈdʒɛnjuəs/

ingenuous

gutgläubig
Meaning
Innocent, naive, and unsuspecting; showing childlike simplicity and sincerity.
Example
Her ingenuous smile revealed her genuine kindness.
Ihr gutgläubiges Lächeln zeigte ihre wahre Freundlichkeit.
C1 adjective /ɪnˈhɪbɪtɪd/

inhibited

gehemmt
Meaning
Unable to act in a relaxed and natural way, especially due to self-consciousness or restraint.
Example
He was too inhibited to express his true feelings.
Er war zu gehemmt, um seine wahren Gefühle auszudrücken.
C1 adjective /ˌɪndɪˈstɪŋkt/

indistinct

undeutlich
Meaning
Not clear or sharply defined; vague or blurred.
Example
The sound of voices was indistinct in the distance.
Der Klang der Stimmen war in der Ferne undeutlich.
B1 noun /ɪnˈvɛstər/

investor

investor
Meaning
a person or organization that puts money into financial schemes, property, or business ventures with the expectation of achieving a profit
Example
The investor funded the startup with a large sum of money.
Der Investor finanzierte das Startup mit einer großen Geldsumme.
B2 verb ˈɪmplɪmentɪd

implemented

umgesetzt
Meaning
Put a decision or plan into effect; carried out or executed.
Example
The master plans were partially implemented.
Die Masterpläne wurden teilweise umgesetzt.
B2 adjective, noun /ɪzˈreɪli/

israeli

israelisch
Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
Sie arbeitet für ein israelisches Unternehmen.
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

verständlich
Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
Durch den Lärm war ihre Rede kaum verständlich.
C1 adjective ɪn ˈfleɪ.ʃə.ner.i

inflationary

inflationär
Meaning
Characterized by or tending to cause monetary inflation; relating to rising prices.
Example
The government took measures to control inflationary pressures.
Die Regierung ergriff Maßnahmen zur Kontrolle der inflationären Drücke.
C1 noun /ɪnˈtruː.ʒən/

intrusion

unbefugtes Eindringen
Meaning
Unauthorized entry into a system or place without permission
Example
The company detected an intrusion in its server.
Das Unternehmen hat eine Intrusion in seinem Server erkannt.
C1 adjective ˈɪn.lənd

Inland

Binnen
Meaning
Situated in the interior of a country; away from the coast.
Example
Inland transport boosts local trade.
Binnenverkehr fördert den lokalen Handel.
C1 adjective /ˌɪnækˈsɛsəbl/

inaccessible

unzugänglich
Meaning
unable to be reached, entered, or understood
Example
The remote village is almost inaccessible during the rainy season.
Das abgelegene Dorf ist während der Regenzeit fast unzugänglich.
C2 noun /ˌɪmbəˈsɪləti/

imbecility

Dummheit
Meaning
Extreme foolishness, stupidity, or weakness of mind.
Example
The plan was abandoned due to its sheer imbecility.
Der Plan wurde aufgrund seiner völligen Dummheit aufgegeben.
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.
B2 noun /ˌɪm.ɪˈteɪ.ʃən/

Imitation

Imitation; Nachahmung; Kopie
Meaning
the action of using someone or something as a model; a copy of something original
Example
His imitation of the famous actor was so good that everyone burst into laughter.
seine Imitation des berühmten Schauspielers war so gut, dass alle in Lachen ausbrachen.
B2 adjective /ɪˈmɒrəl/

immoral

unmoralisch
Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
Er wurde wegen seines unmoralischen Verhaltens entlassen.
B1 adjective /ɪnˈvɑːlvd/

involved

beteiligt
Meaning
complicated or engaged in something
Example
She was deeply involved in community service.
Sie war tief in den Gemeinschaftsdiensten beteiligt.
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 noun ˌɪn.toʊˈneɪ.ʃən

intonation

Intonation
Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
Die richtige Intonation verbessert die Klarheit einer Rede.
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?
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 noun /ˌɪm.pəˈzɪʃ.ən/

Imposition

Auferlegung; Last; ungerechte Forderung
Meaning
the action or process of imposing something or of being imposed; an unfair burden or demand
Example
The imposition of new taxes without consultation angered the citizens greatly.
Die Auferlegung neuer Steuern ohne Beratung verärgerte die Bürger erheblich.
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.
B1 noun ɪnˈvestmənt

investment

Investition
Meaning
The action or process of investing money for profit or material result.
Example
Investment in waste management infrastructure is essential.
Investitionen in Abfallmanagementinfrastruktur sind unerlässlich.
A2 noun /ˈɪntəvjuː/

interview

Vorstellungsgespräch
Meaning
A meeting of people face to face, especially for consultation.
Example
The interview was conducted in a calm and professional manner.
Das Vorstellungsgespräch wurde ruhig und professionell geführt.
C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

Instrumentalist
Meaning
A person who plays a musical instrument.
Example
The instrumentalist played a beautiful solo on the violin.
Der Instrumentalist spielte ein schönes Solo auf der Violine.
C2 noun /ɪnˌtɛl.ɪˈdʒɛntsi.ə/

intelligentsia

Intelligenzija
Meaning
The group of people engaged in intellectual and cultural pursuits in a society.
Example
The intelligentsia played a key role in shaping public opinion.
Die Intelligenzija spielte eine Schlüsselrolle bei der Bildung der öffentlichen Meinung.
C2 adjective /ˌɪnfəˈlɪsɪtəs/

infelicitous

unangemessen
Meaning
not suitable or well chosen; awkward or unfortunate
Example
His infelicitous remark ruined the atmosphere of the meeting.
Seine unangemessene Bemerkung ruinierte die Atmosphäre des Treffens.
C1 noun /ɪˈreləvəns/

irrelevance

Irrelevanz
Meaning
the quality of not being connected to or important for a particular matter; lack of significance
Example
His long explanation only highlighted the irrelevance of the details to the main issue.
Seine lange Erklärung zeigte nur die Irrelevanz der Details für das Hauptthema.
B2 noun /ɪmˈpeɪʃəns/

impatience

Ungeduld
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
Seine Ungeduld wuchs, als sich das Treffen in die Länge zog.
C1 noun /ˈɪn.fən.tri/

Infantry

infanterie
Meaning
soldiers marching or fighting on foot; foot soldiers collectively
Example
The infantry advanced across the battlefield on foot.
Die Infanterie marschierte zu Fuß über das Schlachtfeld.
B2 noun /ɪnˈtɛnt/

intent

Absicht
Meaning
the purpose or reason behind an action; a strong determination to do something
Example
Her intent was to improve the quality of education in the community.
Ihre Absicht war es, die Qualität der Bildung in der Gemeinschaft zu verbessern.
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 adjective/verb /ɪnˈkɑːrneɪt/

incarnate

inkarniert
Meaning
to embody or represent in human form; in flesh
Example
She is kindness incarnate.
Sie ist die Güte inkarniert.
B2 adjective /ˈɪrɪteɪtɪd/

irritated

gereizt
Meaning
feeling annoyed or impatient; having inflamed or sore physical condition
Example
She felt irritated by the constant noise outside her window.
Sie war durch den ständigen Lärm gereizt.
C2 noun /ˈɪsməs/ or /ˈɪsθməs/

isthmus

Isthmus
Meaning
A narrow strip of land connecting two larger land areas, often with water on either side.
Example
The Panama Canal cuts through the Isthmus of Panama.
Der Panamakanal verläuft durch den Isthmus von Panama.
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.
C2 adjective /ɪmˈpæsɪbəl/

impassible

unempfindlich
Meaning
Incapable of suffering or feeling pain (used mainly in theological or philosophical contexts).
Example
Some philosophers argue that God is impassible and cannot experience human emotions.
Einige Philosophen argumentieren, dass Gott unempfindlich ist und keine menschlichen Emotionen erfahren kann.
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.
B1 noun ɪnˈven.ʃən

invention

Erfindung
Meaning
The action of inventing something, typically a process or device.
Example
The invention revolutionized communication.
Die Erfindung revolutionierte die Kommunikation.
B1 adverb /ɪˈnɪʃəli/

initially

zunächst
Meaning
At the beginning; at first.
Example
Initially, he refused the offer but later accepted it.
Zu Beginn lehnte er das Angebot ab, nahm es später jedoch an.
C1 adjective /ɪnˈkɒmp(ə)rəbl/

incomparable

unvergleichlich
Meaning
Without an equal in quality or excellence; matchless.
Example
The view from the mountain was incomparable.
Der Ausblick vom Berg war unvergleichlich.
B2 verb /ɪnˈtɜːrprət/

interpret

interpretieren / übersetzen
Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
Sie musste die Rede für die ausländischen Gäste übersetzen.
C1 noun /ˌɪntəkəˈnɛktɪvɪti/

interconnectivity

Interkonnektivität
Meaning
The state of being interconnected or the degree of connectivity between components
Example
The rise of interconnectivity has transformed global communication.
Der Aufstieg der Interkonnektivität hat die weltweite Kommunikation verändert.
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.
B1 adjective /ɪnˈtɜːrnəl/

internal

intern
Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
Das Unternehmen führt diesen Monat eine interne Prüfung durch.
C2 noun /ɪnˈvɛstɪtʃər/

investiture

Investiturzeremonie
Meaning
the formal ceremony of conferring authority, rank, or office
Example
The king held an investiture ceremony for the new knight.
Der König hielt eine Investiturzeremonie für den neuen Ritter ab.
B1 adjective /aɪˈdiːəl/

ideal

ideal
Meaning
the best possible; perfect for a situation
Example
This place is ideal for a picnic.
Dieser Ort ist ideal für ein Picknick.
C2 adjective /ɪnˈæpt/

Inapt

ungeeignet; unpassend
Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
Sein Kommentar war für das formelle Meeting unpassend.
B1 adjective /ˈɪnəsənt/

Innocent

unschuldig; rein; harmlos
Meaning
free from guilt or sin; pure; harmless; naive
Example
The innocent child had no idea that her parents were planning a surprise party.
Das unschuldige Kind hatte keine Ahnung, dass ihre Eltern eine Überraschungsparty planten.
A2 adjective /ɪnˈtɛlɪdʒənt/

intelligent

intelligent
Meaning
Having or showing high mental capacity, quick to learn and understand.
Example
She is one of the most intelligent students in the class.
Sie ist eine der intelligentesten Schülerinnen in der Klasse.
C1 adjective /ɪmˈpɑːrʃəl/

Impartial

unparteiisch; neutral
Meaning
treating all sides fairly; unbiased; neutral
Example
A good judge must remain impartial throughout the trial.
Ein guter Richter muss während des gesamten Prozesses unparteiisch bleiben.
C2 verb /ɪˈreɪdieɪt/

irradiate

irradieren
Meaning
to shine light on something; to expose to radiation; to illuminate or brighten
Example
The scientist used a lamp to irradiate the sample.
Der Wissenschaftler verwendete eine Lampe, um die Probe zu irradieren.
B2 verb /ɪnˈherɪt/

inherit

erben
Meaning
to receive money, property, or characteristics from someone when they die; to acquire from predecessors
Example
She inherited her grandmother's house.
Sie hat das Haus ihrer Großmutter geerbt.
C2 noun /ɪˈrɛvərəns/

irreverence

Irreverenz
Meaning
a lack of respect for people or things that are generally taken seriously
Example
His jokes about religion showed irreverence to the sacred traditions.
Seine Witze über Religion zeigten Irreverenz gegenüber den heiligen Traditionen.
B2 adjective /ɪˈmens/

Immense

immens; riesig; gewaltig
Meaning
extremely large or great; huge
Example
The immense mountain range stretched across the horizon.
Das immense Gebirgsmassiv erstreckte sich über den Horizont.
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.
C1 adjective ˌɪn.krəˈmen.təl

incremental

inkrementell
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
Inkrementelle Veränderungen gewährleisten Nachhaltigkeit.
C1 adjective /ˈɜːrksəm/

irksome

ärgerlich
Meaning
annoying or irritating
Example
Waiting in a long line is one of the most irksome tasks.
In einer langen Schlange zu warten ist eine der ärgerlichsten Aufgaben.
C1 verb /ɪnˈstɪl/

instill

einflößen
Meaning
to gradually but firmly establish an idea, attitude, or habit in someone's mind
Example
Parents try to instill good values in their children.
Eltern versuchen, ihren Kindern gute Werte beizubringen.
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.
C2 noun /ˌɪmprəˈpraɪəti/

impropriety

Ungehörigkeit
Meaning
Failure to observe standards of honesty or modesty; improper behavior.
Example
The politician was accused of financial impropriety.
Der Politiker wurde der finanziellen Ungehörigkeit beschuldigt.
C2 adverb /ˌɪnsəʊˈmʌtʃ/

insomuch

so sehr
Meaning
to such an extent
Example
He was insomuch tired that he could hardly stand.
Er war so müde, dass er kaum noch stehen konnte.
C1 adjective /ɪnˈtræk.tə.bəl/

intractable

unlösbar
Meaning
Difficult or impossible to manage, control, or solve.
Example
The conflict has become an intractable problem.
Der Konflikt ist zu einem unlösbaren Problem geworden.
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

unerschütterlich
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
Seine unerschütterliche Natur machte ihn zu einem großartigen Führer.
C2 noun /ˈɪrɪɡənt/

irrigant

Bewässerungsflüssigkeit
Meaning
A liquid used for irrigation, especially in medical or agricultural contexts.
Example
The doctor used a sterile irrigant during the procedure.
Der Arzt verwendete während des Verfahrens ein steriles Bewässerungsflüssigkeit.
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.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

Unannehmlichkeit
Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
Wir entschuldigen uns für jede durch die Verzögerung verursachte Unannehmlichkeit.
B2 noun /ˌɪnsɪˈkjʊərɪti/

insecurity

Unsicherheit
Meaning
lack of confidence or assurance; a state of uncertainty or vulnerability
Example
Her insecurity made her doubt her abilities despite her experience.
Ihre Unsicherheit ließ sie an ihren Fähigkeiten zweifeln.
B2 noun /ˈɪnfənt/

infant

Säugling
Meaning
A very young child or baby.
Example
The infant was sleeping peacefully in the cradle.
Der Säugling schlief friedlich im Kinderbett.
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 noun /ɪnˈhɪərəns/

inherence

Inhärenz
Meaning
The state of being an essential or permanent part of something.
Example
The inherence of risk is part of every business venture.
Das Inherente Risiko ist Teil jedes geschäftlichen Vorhabens.
C2 noun /ɪmˈpaɪ.ə.ti/

Impiety

Gottlosigkeit
Meaning
lack of piety or reverence, especially for a god; disrespect or irreverence toward religious matters
Example
His impiety shocked the religious community when he mocked their sacred ceremonies.
Seine Gottlosigkeit schockierte die religiöse Gemeinschaft, als er sich über ihre heiligen Zeremonien lustig machte.
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.
C1 noun /ˈɪnflʌks/

influx

Zufluss
Meaning
A large arrival or flow of people or things.
Example
The city experienced an influx of tourists during the festival.
Die Stadt erlebte einen Zufluss von Touristen während des Festivals.
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.
B1 noun /ɪnˌvɛs.tɪˈɡeɪ.ʃən/

investigation

untersuchung
Meaning
the process of inquiring into or examining something carefully to find the truth
Example
The investigation revealed new evidence about the fraud.
Die Untersuchung enthüllte neue Beweise für den Betrug.
C1 noun /ˈɪmɪdʒəri/

imagery

Bildsprache
Meaning
visually descriptive or figurative language, especially in a literary work
Example
The poet's use of imagery brought the scene to life.
Der Einsatz von Bildsprache des Dichters erweckte die Szene zum Leben.
C2 adjective /ɪnˈvaɪələt/

inviolate

unversehrt
Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
Der alte Tempel blieb über Jahrhunderte unversehrt.
C2 verb /ɪmˈpjuːt/

impute

zurechnen
Meaning
to attribute a fault or responsibility to someone
Example
They imputed the company's success to good leadership.
Sie imputierten den Erfolg des Unternehmens auf gute Führung.
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.
C2 verb /ɪnˈdaɪt/

indite

verfassen
Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
Der Dichter verfasste ein aufrichtiges Sonett.
B2 verb /ɪtʃ/

itch

Juckreiz
Meaning
to feel an urge to scratch; to have a restless desire
Example
My skin itches from the mosquito bites.
Meine Haut juckt wegen der Mückenstiche.
B2 noun /ˈɪnvənˌtɔːri/

inventory

Inventar
Meaning
A complete list of items, such as goods in stock or property.
Example
The shopkeeper checked the inventory before opening the store.
Der Ladenbesitzer hat das Inventar überprüft, bevor er den Laden öffnete.
C1 verb /ɪmˈplɔːr/

implore

bitten
Meaning
To beg someone earnestly or desperately to do something.
Example
She implored him to stay with her.
Sie bat ihn verzweifelt, bei ihr zu bleiben.
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.
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 adjective /ɪnˈkɒrɪdʒəbəl/

incorrigible

unverbesserlich
Meaning
incapable of being corrected, improved, or reformed
Example
He is an incorrigible optimist who never loses hope.
Er ist ein unverbesserlicher Optimist, der niemals die Hoffnung verliert.
C1 adjective ˌɪm.pəˈsɛp.tɪ.bəl

imperceptible

unmerklich
Meaning
So subtle or gradual that it is difficult to notice or perceive
Example
The changes in his behavior were imperceptible at first.
Die Veränderungen in seinem Verhalten waren anfangs unmerklich.
C1 adjective /ˌɪn.səbˈstæn.ʃəl/

insubstantial

unwesentlich
Meaning
Lacking strength, substance, or solidity.
Example
The evidence provided was insubstantial and unconvincing.
Die bereitgestellten Beweise waren unwesentlich und wenig überzeugend.
B1 noun ɪnˈtel.ɪ.dʒəns

intelligence

Intelligenz
Meaning
The ability to learn, understand, and think in a logical way about things
Example
Intelligence is key in AI development.
Intelligenz ist der Schlüssel zur KI-Entwicklung.
C1 adjective /ɪˈlɒdʒ.ɪ.kəl/

Illogical

Illogisch
Meaning
not reasonable or sensible; lacking logic
Example
It would be illogical to go swimming in such cold weather.
Es wäre illogisch, bei solch kaltem Wetter schwimmen zu gehen.