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C1 verb /ɪnˈfleɪt/

inflate

aufblasen; künstlich erhöhen
Meaning
to fill with air or gas so it expands; to increase excessively or artificially
Example
The mechanic inflated the tire to the correct pressure.
Der Mechaniker blies den Reifen auf den richtigen Druck auf.
B2 adjective /ˈɪmpæktfʊl/

impactful

wirksam
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
Ihre wirksame Rede bewegte das Publikum, Maßnahmen zu ergreifen.
C2 verb /ɪnˈdɒktrɪˌneɪt/

indoctrinate

indoktrinieren
Meaning
To teach someone to fully accept a set of beliefs or ideas without question.
Example
The regime tried to indoctrinate the youth with propaganda.
Das Regime versuchte, die Jugend mit Propaganda zu indoktrinieren.
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.
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

ungenau
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
Seine Erklärung war zu ungenau, um hilfreich zu sein.
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 adjective /ɪnˈfæləbl̩/

infallible

unfehlbar
Meaning
incapable of making mistakes or being wrong
Example
Her judgment seemed infallible in matters of finance.
Ihr Urteil schien in finanziellen Angelegenheiten unfehlbar.
C2 adjective /ˌɪndaɪˈdʒestəbəl/

Indigestible

indigest; schwer zu verdauen
Meaning
difficult or impossible to digest; hard to process in the stomach
Example
The old bread became hard and indigestible.
Das alte Brot wurde hart und ungenießbar.
C2 adjective /ɪnˈskruːtəbl̩/

inscrutable

Glück
Meaning
impossible to understand or interpret
Example
His inscrutable expression made it hard to know what he was thinking.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
B2 adverb /aɪˈrɒnɪkli/

ironically

ironischerweise
Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
Ironischerweise brannte die Feuerwache nieder.
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.
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 ˌɪn.təˈmɪt.ənt

intermittent

intermittierend
Meaning
Happening irregularly, not continuously.
Example
The rain was intermittent throughout the day.
Der Regen war den ganzen Tag über intermittierend.
C1 noun /ˈɪnkwest/

inquest

Untersuchung
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
Die Untersuchung enthüllte die Ursache des Unfalls.
C2 adjective /ˌɪrɪˈkɒnsɪləbl/

irreconcilable

unversöhnlich
Meaning
impossible to make compatible or bring into harmony; unable to resolve differences
Example
The couple separated due to irreconcilable differences.
Das Paar trennte sich aufgrund unversöhnlicher Differenzen.
C2 adjective /ˈɪnˌbrɛd/

inbred

angeboren
Meaning
existing naturally in a person or animal; also related to reproduction within a limited community
Example
He has an inbred sense of loyalty.
Er hat ein angeborenes Gefühl der Loyalität.
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.
C2 adjective /ɪnˈvɪdiəs/

invidious

missgünstig
Meaning
likely to arouse resentment, envy, or anger in others
Example
The manager's invidious remarks created tension among the employees.
Die missgünstigen Bemerkungen des Managers verursachten Spannungen unter den Mitarbeitern.
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

irreparabel
Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
Der Unfall verursachte irreparable Schäden an seiner Wirbelsäule.
C2 adjective /ɪˈnjʊərd/

inured

abgestumpft
Meaning
Accustomed to something, especially something unpleasant.
Example
After years of hardship, she was inured to suffering.
Nach Jahren des Leidens war sie an das Schmerzempfinden gewöhnt.
C2 adjective /ˌɪnɪkˈstɛnsəbl/

inextensible

undehnbar
Meaning
Not capable of being stretched or extended.
Example
This rope is made of an inextensible material.
Dieses Seil ist aus einem undehnbaren Material gemacht.
C1 noun /ˌɪndɪˈdʒɛstʃən/

indigestion

Verdauungsstörung
Meaning
Discomfort or pain in the stomach associated with difficulty in digesting food.
Example
He avoided spicy food because it often gave him indigestion.
Er vermied scharfes Essen, weil es ihm oft Verdauungsstörungen verursachte.
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.
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 ˌɪdiəsɪnˈkrætɪk

idiosyncratic

eigenartig und individuell
Meaning
Relating to idiosyncrasy; peculiar or individual.
Example
His idiosyncratic behavior set him apart from his colleagues.
Sein idiosynkratisches Verhalten unterschied ihn von seinen Kollegen.
C2 adjective /ˌɪnsəˈluːbriəs/

insalubrious

ungesund
Meaning
Unhealthy or not conducive to well-being.
Example
They moved out of the insalubrious neighborhood for the sake of their health.
Sie zogen aus dem ungesunden Viertel für ihre Gesundheit heraus
C1 adjective /ˈɪntrɪkət/

intricate

komplex
Meaning
very detailed, complex, and difficult to understand
Example
The artist created an intricate pattern on the wall.
Der Künstler hat ein komplexes Muster an die Wand gemalt.
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.
B2 verb /ɪnˈhæbɪt/

inhabit

bewohnen
Meaning
to live in; to occupy as a dwelling
Example
Many animals inhabit the forest.
Viele Tiere bewohnen den Wald.
C2 noun /ˌɪməʊˈbɪləti/

immobility

Unbeweglichkeit
Meaning
The state of being unable to move.
Example
After the accident, she suffered from immobility in her legs.
Nach dem Unfall litt sie an Unbeweglichkeit in ihren Beinen.
C1 adjective ɪnɪɡˈzɔːstɪbəl

inexhaustible

unerschöpflich
Meaning
Unable to be used up or worn out; limitless.
Example
His inexhaustible energy allowed him to work tirelessly on his projects.
Seine unerschöpfliche Energie ermöglichte es ihm, unermüdlich an seinen Projekten zu arbeiten.
B1 adjective /ɪˈnɪʃəl/

initial

anfänglich
Meaning
Existing or occurring at the beginning.
Example
Her initial reaction was one of surprise.
Ihre anfängliche Reaktion war eine Überraschung.
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.
C1 noun /ˌɪn.trəˈvɜːr.ʒən/

introversion

Introversion
Meaning
The tendency to be inward-looking and shy, preferring solitary activities.
Example
Her introversion made it difficult for her to enjoy large parties.
Ihre Introversion machte es ihr schwer, große Partys zu genießen.
B2 adjective ɪnˈdɪdʒɪnəs

indigenous

einheimisch
Meaning
Originating or occurring naturally in a particular place; native.
Example
Indigenous plants are well adapted to the local environment.
Einheimische Pflanzen sind gut an die lokale Umgebung angepasst.
C1 noun /ˈɪn.tə.lekt/

intellect

Intellekt
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
Ihr Intellekt wird von allen ihren Kollegen bewundert.
C2 adjective /ɪnˈɛstɪməbl/

inestimable

unermesslich
Meaning
Too great or valuable to be measured or estimated.
Example
Her contribution to the project was of inestimable value.
Ihr Beitrag zum Projekt war von unermesslichem Wert.
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 ˌɪnfɛsˈteɪʃən

infestation

befall, das Vorhandensein einer ungewöhnlich großen Anzahl von Insekten oder Tieren an einem Ort
Meaning
The presence of an unusually large number of insects or animals in a place, causing damage or disease.
Example
The infestation of ants in the kitchen led to immediate pest control measures.
Die Insektenplage in der Küche führte zu sofortigen Maßnahmen zur Schädlingsbekämpfung.
C1 noun /ˈɪŋ.krə.mənt/

Increment

Erhöhung
Meaning
an increase or addition, especially one of a series on a fixed scale; a regular increase in salary
Example
He received an annual increment of five percent in his salary this year.
Er erhielt in diesem Jahr eine jährliche Erhöhung von fünf Prozent seines Gehalts.
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

ineffektiv
Meaning
Not producing any significant or desired effect; not achieving the intended result.
Example
Rote learning often proves to be ineffective.
Auswendiglernen erweist sich oft als ineffektiv.
B2 verb /ˈɪl.ə.streɪt/

illustrate

veranschaulichen
Meaning
to explain or make something clear by using examples, pictures, or comparisons
Example
The teacher used diagrams to illustrate the concept.
Der Lehrer hat Diagramme verwendet, um das Konzept zu veranschaulichen.
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 noun /ˈɪndələns/

indolence

Indolenz
Meaning
Avoidance of activity or exertion; laziness.
Example
His indolence kept him from finishing the project on time.
Seine Indolenz hinderte ihn daran, das Projekt rechtzeitig abzuschließen.
B2 adjective /ɪnˈsɛnsətɪv/

insensitive

gefühllos
Meaning
Showing or feeling no concern for others' feelings.
Example
His insensitive comment hurt her deeply.
Sein gefühlloser Kommentar hat sie tief verletzt.
C2 adjective /ɪmˈpruːdənt/

imprudent

unbedacht
Meaning
Not showing care for the consequences of an action.
Example
It was imprudent to drive in such stormy weather.
Es war unbedacht, bei solchem Sturmwetter zu fahren.
C1 verb /ɪmˈpɛrɪl/

imperil

in Gefahr bringen
Meaning
To put in danger or at risk.
Example
Reckless driving can imperil the lives of others.
Rücksichtsloses Fahren kann das Leben anderer gefährden.
B1 verb /ˌɪntərˈækt/

interact

interagieren
Meaning
to communicate or work together with someone or something
Example
Students interact with teachers during class discussions.
Die Schüler interagieren während der Unterrichtsdiskussionen mit den Lehrern.
C1 noun ˌɪnˈsaɪtfʊlnɪs

insightfulness

Einsicht, Analysefähigkeit
Meaning
The capacity to gain an accurate and deep intuitive understanding of a person or thing.
Example
His insightfulness helped solve the complex problem.
Seine Einsicht half, das komplexe Problem zu lösen.
C2 adjective /ɪnˈdjuːbɪtəbl/

indubitable

unzweifelbar
Meaning
Impossible to doubt; unquestionable.
Example
It is indubitable that hard work leads to success.
Es ist unzweifelbar, dass harte Arbeit zum Erfolg führt.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

Unachtsamkeit
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
Der Fehler geschah durch reine Unachtsamkeit.
C2 noun /aɪˈkɒnəklæst/

iconoclast

Ikonoklast
Meaning
A person who attacks or criticizes cherished beliefs, traditions, or institutions.
Example
He was known as an iconoclast who challenged old traditions.
Er war als Ikonoklast bekannt, der alte Traditionen herausforderte.
C1 adjective /ɪnˈdefɪnət/

Indefinite

unbestimmt
Meaning
not clearly defined; uncertain; vague; unlimited in time
Example
The meeting has been postponed for an indefinite period.
Das Treffen wurde auf einen unbestimmten Zeitraum verschoben.
B2 adjective /ɪnˈtriːɡɪŋ/

intriguing

sehr interessant und ungewöhnlich; weckt Neugier
Meaning
very interesting and unusual; arousing curiosity
Example
The movie has an intriguing plot that keeps the audience hooked.
Der Film hat eine interessante Handlung, die das Publikum fesselt.
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.
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.
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.
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.
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.
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.
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.
C2 noun /aɪər/

ire

Zorn, Wut
Meaning
intense anger or rage
Example
The new policy provoked the ire of the employees.
Die neue Politik erregte den Zorn der Mitarbeiter.
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.
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.
C1 noun /ˌɪnkjʊˈbeɪʃən/

incubation

der Prozess, Eier, Zellen oder Organismen unter den richtigen Bedingungen für die Entwicklung zu halten
Meaning
the process of keeping eggs, cells, or organisms in the right conditions for development
Example
The incubation of the eggs lasted for three weeks.
Die Inkubation der Eier dauerte drei Wochen.
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.
C2 verb /ɪnˈsɪnəˌreɪt/

incinerate

verbrennen
Meaning
to burn something completely until it is reduced to ashes
Example
The city decided to incinerate the medical waste for safety.
Die Stadt beschloss, den medizinischen Müll aus Sicherheitsgründen zu verbrennen.
C2 noun /ˈaɪ.səˌbɑːr/

isobar

Isobar
Meaning
A line on a weather map connecting points of equal atmospheric pressure.
Example
The meteorologist explained how isobars indicate wind speed and direction.
Der Meteorologe erklärte, wie Isobaren die Windgeschwindigkeit und -richtung anzeigen.
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.
C1 adjective /ɪmˈpɜːmiəbl/

impermeable

undurchlässig
Meaning
Not allowing fluid or gas to pass through.
Example
The container is made of impermeable plastic.
Der Behälter besteht aus undurchlässigem Kunststoff.
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.
C1 noun ˈɪn.fər.əns

inference

Schlussfolgerung
Meaning
A conclusion reached on the basis of evidence and reasoning; logical deduction.
Example
Scientists make inferences based on experimental data.
Wissenschaftler ziehen Schlussfolgerungen basierend auf experimentellen Daten.
C2 adjective /ˌɪnkənˈsɪdərəbl/

inconsiderable

geringfügig
Meaning
Too small or unimportant to be worth considering.
Example
The donation was not inconsiderable, though smaller than expected.
Die Spende war nicht geringfügig, obwohl sie kleiner als erwartet war.
C2 noun /ˈaɪsinəs/

iciness

Kälte
Meaning
The state of being cold in manner or temperature.
Example
There was a distinct iciness in his voice.
Es war eine deutliche Kälte in seiner Stimme.
C2 noun /ɪmˈpjuːnɪti/

impunity

Immunität
Meaning
freedom from punishment or harmful consequences for an action
Example
The dictator ruled with impunity, ignoring international laws.
Der Diktator regierte mit Impunität und ignorierte internationale Gesetze.
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 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.
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.
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.
A2 noun /ˌɪn.trəˈdʌk.ʃən/

introduction

Einführung
Meaning
the action of introducing something or someone; an opening or beginning part
Example
The professor gave a brief introduction before starting the lecture.
Der Professor gab eine kurze Einführung, bevor er die Vorlesung begann.
C2 adjective /ˌɪnkænˈdɛsənt/

incandescent

glühend
Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
Die glühende Lampe erleuchtete den gesamten Raum.
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.
A2 noun/adjective /ˌɪndɪˈvɪdʒuəl/

individual

Individuum
Meaning
A single human being as distinct from a group; relating to one person.
Example
Each individual has the right to freedom of speech.
Jeder Einzelne hat das Recht auf freie Meinungsäußerung.
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

vorstellbar
Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
Sie boten auf dem Festival jede erdenkliche Art von Essen an.
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.
B2 adjective /ˌɪd.iˈɒt.ɪk/

Idiotic

idiotisch
Meaning
extremely stupid; foolish; senseless
Example
His idiotic behavior embarrassed everyone at the meeting.
Sein idiotisches Verhalten hat alle bei der Besprechung in Verlegenheit gebracht.
C2 adjective /ɪmˈplækəbl/

implacable

unversöhnlich
Meaning
unable to be appeased, calmed, or pacified
Example
The soldiers faced an implacable enemy who refused to surrender.
Die Soldaten standen einem unversöhnlichen Feind gegenüber, der sich weigerte, sich zu ergeben.
C2 adjective /ˈɪnfəntaɪl/

infantile

kindlich
Meaning
characteristic of an infant; childish
Example
His infantile behavior embarrassed everyone at the meeting.
Sein kindliches Verhalten peinigte alle in der Besprechung.
C1 noun ˌɪn.ɪˈfɪʃ.ən.si

inefficiency

Ineffizienz
Meaning
The state or quality of not achieving maximum productivity; failure to make the best use of time or resources.
Example
Government inefficiency leads to slow project completion.
Regierungsineffizienz führt zu langsamer Projektfertigstellung.
B2 verb /ɪnˈʃʊər/

insure

versichern
Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
Ich muss mein neues Auto versichern.
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.
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.
C2 verb /ˈɪməleɪt/

immolate

immolieren
Meaning
To kill or sacrifice, especially by burning.
Example
The protesters threatened to immolate themselves in front of the building.
Die Demonstranten drohten, sich vor dem Gebäude zu immolieren.
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.
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

genialität
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
Seine Ingenuität führte zu bahnbrechenden Innovationen.
C2 verb /ɪmˈpɛnd/

impend

drohen
Meaning
to be about to happen; to loom threateningly
Example
Dark clouds suggested that a storm was impeding.
Dunkle Wolken deuteten darauf hin, dass ein Sturm bevorstand.
C1 adjective /ˌɪnsɪˈdɛntəl/

incidental

nebenkosten
Meaning
happening as a minor part or in connection with something else
Example
Incidental expenses like snacks and tips were included in the bill.
Nebenkosten wie Snacks und Trinkgelder wurden in die Rechnung aufgenommen.
B2 noun /ˌɪnstəˈbɪləti/

instability

Instabilität
Meaning
lack of stability or balance; tendency to change, fail, or collapse easily
Example
Political instability has slowed economic growth in the region.
Politische Instabilität hat das wirtschaftliche Wachstum der Region verlangsamt.
B1 verb /ɪmˈprɛs/

impress

beeindrucken
Meaning
to cause someone to feel admiration or respect
Example
Her speech managed to impress the audience.
Ihre Rede hat das Publikum beeindruckt.
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.
C1 adverb /ɪnˈvɜːrs.li/

Inversely

umgekehrt; entgegengesetzt
Meaning
in a way that is opposite or contrary; in reverse order or manner
Example
The price of goods is inversely related to their availability in the market.
Der Preis von Waren ist umgekehrt mit ihrer Verfügbarkeit auf dem Markt verbunden.
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 noun /ˈɪd.i.ə.si/

Idiocy

Idiotie
Meaning
extremely stupid behavior or actions; foolishness
Example
The decision to ignore safety protocols was pure idiocy that endangered everyone.
Die Entscheidung, die Sicherheitsprotokolle zu ignorieren, war pure Idiotie, die alle in Gefahr brachte.
B2 adjective ˌɪn.təˈræk.tɪv

interactive

interaktiv
Meaning
Allowing a two-way flow of information between it and a user, responding to the user's input.
Example
Interactive learning keeps students engaged in lessons.
Interaktives Lernen hält die Schüler in den Lektionen engagiert.
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.
C2 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

unbezwingbar
Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
Ihr unbezwungener Geist half ihr, Widrigkeiten zu überwinden.
C2 adverb /ˈaɪsɪli/

icily

kalt
Meaning
In a very cold, unfriendly, or hostile manner.
Example
She replied icily to his question.
Sie antwortete kalt auf seine Frage.
C2 noun /ɪˌluːmɪˈnɑːti/

illuminati

illuminati
Meaning
a group of people claiming to have special enlightenment or secret knowledge, often linked to conspiracies
Example
Many conspiracy theories involve the Illuminati as a secret world-controlling group.
Viele Verschwörungstheorien beinhalten die Illuminaten als eine geheime, weltbeherrschende Gruppe.
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

Armut
Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
Die Wohltätigkeitsorganisation wurde gegründet, um Menschen zu helfen, die in Armut leben.
B2 noun /ˈaɪkɒn/

icon

Ikone, Symbol
Meaning
A person or thing regarded as a symbol of something, or a graphic symbol on a screen.
Example
The singer became a cultural icon.
Der Sänger wurde zu einer kulturellen Ikone.
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.
C1 adjective /ɪnˈdɪɡnənt/

indignant

empört
Meaning
Feeling or showing anger at something considered unfair or unjust.
Example
She was indignant when accused of cheating.
Sie war empört, als sie des Schummelns beschuldigt wurde.
A2 noun /ɪmˈpɔːtəns/

importance

Bedeutung
Meaning
The quality or state of being important; consequence or significance.
Example
The importance of time management cannot be overstated.
Die Bedeutung des Zeitmanagements kann nicht hoch genug eingeschätzt werden.
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.
C1 noun /ɪnˈdaɪtmənt/

indictment

Anklageschrift
Meaning
a formal charge or accusation of a serious crime
Example
The indictment accused the company of multiple violations.
Die Anklageschrift beschuldigte das Unternehmen mehrfacher Verstöße.
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 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 verb /ˌɪntəˈsɛkt/

intersect

schneiden
Meaning
to cross or pass through each other
Example
The two roads intersect at the city center.
Die zwei Straßen schneiden sich im Stadtzentrum.
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.
C2 conjunction /ˌɪnəzˈmʌtʃ æz/

inasmuch-as

da
Meaning
Because; since.
Example
He cannot attend, inasmuch as he is unwell.
Er kann nicht teilnehmen, da er krank ist.
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.