imperceptible
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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 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 noun /ɪˈnɜː.ʃə/

Inertia

Inertie; Bewegungsmangel
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
Die Inertie des Teams verhinderte, dass es sich an die sich schnell ändernden Marktbedingungen anpasste.
C2 adjective /ɪˈræsɪbl/

irascible

reizbar
Meaning
Easily angered; quick-tempered.
Example
His irascible nature often got him into trouble.
Sein reizbares Wesen brachte ihn oft in Schwierigkeiten.
B1 verb /ɪnˈvɛnt/

invent

erfinden
Meaning
to create or design something that has not existed before
Example
Thomas Edison invented the electric bulb.
Thomas Edison erfand die elektrische Glühbirne.
C1 noun /ɪnˈhɛrɪtər/

inheritor

Erbe
Meaning
a person who receives money, property, or a title when someone dies
Example
She became the inheritor of her family's estate.
Sie wurde die Erbin des Familienvermögens.
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.
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.
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 /ˈɪnstɪŋkt/

instinct

Instinkt
Meaning
A natural way of behaving or reacting that does not require learning.
Example
Birds build nests by instinct.
Vögel bauen ihre Nester aus Instinkt.
C1 adjective ɪˈluː.sər.i

illusory

illusorisch
Meaning
Based on illusion; not real although seeming to be.
Example
His sense of security was entirely illusory.
Sein Gefühl der Sicherheit war völlig illusorisch.
C1 adjective /ˌaɪ.di.əˈlɒdʒ.ɪ.kəl/

ideological

ideologisch
Meaning
Relating to or based on a system of ideas or beliefs.
Example
The two parties are divided by deep ideological differences.
Die beiden Parteien sind durch tiefgehende ideologische Unterschiede geteilt.
A2 noun /ˈɪnfoʊ/

info

Information
Meaning
information; knowledge or facts about something or someone
Example
She gave me all the info I needed for the meeting.
Sie gab mir alle Informationen, die ich für das Treffen brauchte.
C1 noun /ˌɪntɪˈmeɪʃən/

intimation

Andeutung
Meaning
A subtle or indirect hint or suggestion.
Example
She gave no intimation of her plans.
Sie gab keinen Hinweis auf ihre Pläne.
C2 noun /ɪnˈdɛntʃər/

indenture

Vertrag
Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
Im 18. Jahrhundert kamen viele Arbeiter unter Vertrag, um im Ausland zu arbeiten.
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.
C2 verb /ˌɪntərˈlɒk/

interlock

ineinandergreifen
Meaning
to fit or connect together securely so that two or more things are joined
Example
The gears interlock to ensure smooth movement of the machine.
Die Zahnräder greifen ineinander, um eine reibungslose Bewegung der Maschine zu gewährleisten.
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.
C1 noun /ɪmˈpɛdɪmənt/

impediments

Hindernisse
Meaning
A hindrance or obstruction in doing something; things that prevent progress or achievement.
Example
Economic impediments often hinder social development.
Wirtschaftliche Hindernisse behindern oft die soziale Entwicklung.
C2 adjective/noun /ɪnˈkɑːrnədiːn/

incarnadine

lebenskräftiges rot
Meaning
a bright crimson or pinkish-red color
Example
The sky turned incarnadine at sunset.
Der Himmel wurde beim Sonnenuntergang lebendig rot.
C1 verb ɪˈnɔː.ɡjə.reɪ.tɪd

inaugurated

eingeweiht
Meaning
Begin or introduce (a system, policy, or period) formally.
Example
The organization was inaugurated officially.
Die Organisation wurde offiziell eingeweiht.
C1 adjective /ˌɪnəˈtɛntɪv/

inattentive

unaufmerksam
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
Der unaufmerksame Schüler verpasste mehrere wichtige Anweisungen.
B1 verb /ˌɪntəˈrʌpt/

interrupt

unterbrechen
Meaning
to stop someone from speaking or doing something by suddenly saying or doing something
Example
She tried not to interrupt while he was speaking.
Sie versuchte nicht zu unterbrechen, während er sprach.
C2 noun /ɪnˈsaɪzər/

incisor

Schneidezahn
Meaning
a narrow-edged tooth at the front of the mouth, adapted for cutting
Example
The dentist noted that his upper left incisor was chipped.
Der Zahnarzt stellte fest, dass sein oberer linker Schneidezahn abgebrochen war.
A2 verb /ɪɡˈnɔːr/

ignore

ignorieren
Meaning
to refuse to take notice of; to disregard intentionally
Example
She decided to ignore the rude comments.
Sie beschloss, die unhöflichen Kommentare zu ignorieren.
B2 verb /ɪnˈsʌlt/

insult

beleidigen
Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
Er fühlte sich durch ihre unhöflichen Bemerkungen beleidigt.
C1 noun /ˌɪnflɛksɪˈbɪlɪti/

inflexibility

Unflexibilität
Meaning
the quality of being rigid or unwilling to change; lack of adaptability
Example
The inflexibility of the rules caused unnecessary delays.
Die Unflexibilität der Regeln verursachte unnötige Verzögerungen.
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 noun /ɪˈmiːdiəsi/

immediacy

Unmittelbarkeit, Dringlichkeit
Meaning
The quality of bringing one into direct and instant involvement with something, giving rise to a sense of urgency or excitement.
Example
The immediacy of digital communication has reshaped business operations.
Die Unmittelbarkeit der digitalen Kommunikation hat die Geschäftsabläufe verändert.
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.
B1 noun aɪˈdɛntɪti

identity

Identität
Meaning
The fact of being who or what a person or thing is; the characteristics determining who or what a person or thing is.
Example
The day reinforces our national identity.
Der Tag stärkt unsere nationale Identität.
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.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

Unachtsamkeit
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
Der Fehler geschah durch reine Unachtsamkeit.
B1 noun ˈɪmpækt

impact

Einfluss
Meaning
A strong effect or influence; the action of one object coming forcibly into contact with another.
Example
The decision had great impact.
Die Entscheidung hatte großen Einfluss.
C1 verb /ɪnˈtɒksɪkeɪt/

intoxicate

Glück
Meaning
to make someone lose control of their faculties or behavior due to alcohol or drugs
Example
The strong drink quickly intoxicated him.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
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.
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.
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.
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.
B1 verb /ɪnˈtend/

intend

beabsichtigen
Meaning
to plan or have in mind as a purpose; to mean
Example
I intend to finish this project by tomorrow.
Ich beabsichtige, dieses Projekt bis morgen zu beenden.
B2 adjective /ɪnˈtɛnsɪv/

intensive

intensiv
Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
Sie besuchte einen intensiven Englischkurs, bevor sie ins Ausland zog.
C1 adjective /ɪmˈplɔːzəbl/

implausible

unplausibel
Meaning
Not seeming reasonable or probable; unlikely to be true.
Example
The story she told was so implausible that no one believed her.
Die Geschichte, die sie erzählte, war so unplausibel, dass niemand ihr glaubte.
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

unvermeidlich
Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
Unvermeidlich stand das Team während des Projekts vor Herausforderungen.
C1 adjective ɪˈneɪt

Innate

angeboren oder natürlich
Meaning
Existing from birth or natural
Example
She has an innate talent for music.
Sie hat ein angeborenes Talent für Musik.
C1 noun /ˌɪməˈtjʊərəti/

immaturity

Unreife
Meaning
the state of not being fully developed emotionally, mentally, or physically; lack of maturity
Example
His immaturity made it difficult for him to handle responsibility.
Seine Unreife machte es ihm schwer, Verantwortung zu übernehmen.
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 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 /ɪmˈpɜːrfɪkt/

imperfect

unvollkommen
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
Das Gemälde war schön, obwohl es unvollkommen war.
C1 noun /ˌɪnsɪɡˈnɪfɪkəns/

insignificance

Bedeutungslosigkeit
Meaning
The quality of being unimportant or trivial.
Example
He felt a sense of insignificance in the vast universe.
Er fühlte ein Gefühl der Bedeutungslosigkeit im weiten Universum.
B1 adjective ˌɪn.dɪˈpen.dənt

independent

unabhängig
Meaning
Not depending on another for livelihood or subsistence; free from outside control; not subject to another's authority.
Example
An independent institution ensures transparency in governance.
Eine unabhängige Institution sorgt für Transparenz in der Regierungsführung.
B2 noun ˈɪnər strɛŋkθ

inner strength

innere Stärke
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
Gemeinnützige Arbeit fördert die innere Stärke in Einzelpersonen.
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.
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.
C2 adjective /ɪnˈsɛndiˌɛri/

incendiary

brandstiftend / aufhetzend
Meaning
designed to cause fires or stir up conflict
Example
The politician’s incendiary remarks angered the crowd.
Die aufhetzenden Bemerkungen des Politikers brachten die Menge aufgebracht.
C1 noun ɪnˈsɒl.vən.si

insolvency

Insolvenz
Meaning
The state of being unable to pay debts owed; bankruptcy.
Example
The company declared insolvency after years of losses.
Das Unternehmen erklärte nach Jahren der Verluste Insolvenz.
B1 noun /ˈɪnpʊt/

input

Eingabe, bereitgestellte Informationen
Meaning
information, advice, or data that is put into a system, device, or process
Example
The manager asked for everyone's input on the new project.
Der Manager bat um die Meinung aller zum neuen Projekt.
C1 adjective /ɪnˈveɪsɪv/

invasive

invasiv
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
Der Arzt erklärte, dass das Verfahren minimal invasiv war.
B2 verb /ɪmˈprɪzən/

imprison

einsperren
Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
Der Richter hat den Verbrecher für fünf Jahre eingesperrt.
C2 noun /ɪnˈfrækʃən/

infraction

Verstoß
Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
Der Schüler wurde für einen kleinen Verstoß gegen die Schulregeln bestraft.
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.
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 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.
C1 adjective /ˌɪnəˈfɛnsɪv/

inoffensive

harmlos
Meaning
Not likely to offend or provoke; harmless.
Example
His inoffensive remarks kept the conversation friendly.
Seine harmlosen Bemerkungen hielten das Gespräch freundlich.
B1 noun /ɪmˈpruːvmənt/

improvement

verbesserung
Meaning
the act of making something better
Example
There has been a significant improvement in his health.
Es gab eine signifikante Verbesserung seiner Gesundheit.
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/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 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.
B2 verb /ˈɪmɪɡreɪt/

immigrate

einwandern
Meaning
to come to live permanently in a foreign country
Example
He immigrated to Canada five years ago.
Er ist vor fünf Jahren nach Kanada eingewandert.
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.mət/

Intimate

intim; nahe; privat
Meaning
close in friendship; private and personal; detailed knowledge
Example
They have an intimate friendship that has lasted for decades.
Sie haben eine intime Freundschaft, die seit Jahrzehnten besteht.
C2 noun /ˈɪntəˌkrɒpɪŋ/

intercropping

Zwischenfruchtanbau
Meaning
The agricultural practice of cultivating two or more crops simultaneously in the same field to maximize land use efficiency and improve soil health.
Example
Intercropping can help improve soil fertility and pest control.
Der Zwischenfruchtanbau kann helfen, die Bodenfruchtbarkeit und die Schädlingsbekämpfung zu verbessern.
C1 adjective /ɪˈnɔːɡjərəl/

Inaugural

eröffnend
Meaning
marking the beginning of something; first; opening
Example
The president delivered his inaugural speech.
Der Präsident hielt seine Eröffnungsrede.
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.
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

Einwanderung
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
Die Immigrationspolitik variiert von Land zu Land.
B1 adjective /ɪnkəˈrɛkt/

incorrect

falsch
Meaning
not correct or accurate
Example
The information you provided was incorrect.
Die Informationen, die du gegeben hast, waren falsch.
C1 noun /ˌɪnfɪˈdɛləti/

infidelity

Untreue
Meaning
the act of being unfaithful to a spouse or partner
Example
Their marriage ended due to his infidelity.
Ihre Ehe endete wegen seiner Untreue.
C2 adjective /ˌɪndɪˈvɜːrtɪbəl/

indivertible

unablenkbar
Meaning
Not able to be turned aside or diverted.
Example
The judge's indivertible attention was on the case.
Die unablenkbare Aufmerksamkeit des Richters war auf den Fall gerichtet.
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

Vorstellungskraft; kreative Fähigkeit
Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
Die Vorstellungskraft der Kinder ermöglicht es ihnen, eine Pappbox in ein Raumschiff oder ein Schloss zu verwandeln.
C1 noun /ɪnˈdʒʌŋkʃən/

injunction

Unterlassungsverfügung
Meaning
A judicial order restraining a person from an action or compelling a certain act.
Example
The court issued an injunction to stop the company from polluting the river.
Das Gericht erließ eine Unterlassungsverfügung, um das Unternehmen daran zu hindern, den Fluss zu verschmutzen.
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.
C1 adjective /ɪnˈfleɪtɪd/

inflated

aufgeblasen
Meaning
excessively increased in size, value, or importance; filled with air or gas
Example
The company faced criticism for its inflated prices.
Das Unternehmen sah sich wegen seiner aufgeblasenen Preise Kritik ausgesetzt.
C1 adjective /ɪnˈdʌktɪv/

inductive

induktiv
Meaning
characterized by the inference of general laws from particular instances; reasoning from specific cases to general principles
Example
The scientist used inductive reasoning to form a hypothesis.
Der Wissenschaftler verwendete induktives Denken, um eine Hypothese zu formulieren.
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.
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.
C2 noun /ɪˌledʒ.əˈbɪl.ə.ti/

Illegibility

Unleserlichkeit
Meaning
the quality of being impossible or difficult to read; unclear writing or print
Example
The doctor's handwriting was famous for its illegibility among the pharmacy staff.
Die Handschrift des Arztes war berüchtigt für ihre Unleserlichkeit unter dem Apothekenpersonal.
C1 noun /ɪnˈædɪkwəsi/

inadequacy

Unzulänglichkeit
Meaning
lack of sufficient ability, quality, or strength; a feeling of not being good enough
Example
She struggled with feelings of inadequacy at work despite her strong qualifications.
Trotz ihrer starken Qualifikationen kämpfte sie bei der Arbeit mit Gefühlen der Unzulänglichkeit.
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.
C2 noun /ɪˈnɪkwɪti/

iniquity

Ungerechtigkeit
Meaning
Immoral or grossly unfair behavior.
Example
The dictator's regime was marked by corruption and iniquity.
Das Regime des Diktators war von Korruption und Ungerechtigkeit geprägt.
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 adjective /ˈɪkθiɪk/

ichthyic

ichthyisch
Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
Das Gemälde des Künstlers hatte eine ichthyische Qualität.
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 /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 verb /ɪnˈvɜːrt/

invert

umkehren
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
Er hat das Glas umgedreht, um das Wasser abfließen zu lassen.
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 /ɪnˈskraɪb/

inscribe

einritzen
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
Sie haben ihren Namen auf dem Pokal eingraviert.
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

isotherm
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
Das Experiment wurde unter isothermen Bedingungen durchgeführt.
C1 noun /ɪnˈækjʊrəsi/

inaccuracy

Ungenauigkeit
Meaning
lack of accuracy or precision; an incorrect or wrong detail
Example
The report contained several factual inaccuracies.
Der Bericht enthielt mehrere Ungenauigkeiten.
C1 verb /ɪmˈpiːd/

impede

behindern
Meaning
To obstruct or hinder the progress or development of something.
Example
Lack of funds can impede business growth.
Mangel an Mitteln kann das Wachstum von Unternehmen behindern.
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.
C1 noun /ˈɪn.tə.mə.si/

Intimacy

Intimität; Nähe
Meaning
close familiarity or friendship; closeness; a private cozy atmosphere
Example
The couple valued the emotional intimacy they shared more than material possessions.
Das Paar schätzte die emotionale Intimität, die sie teilten, mehr als materiellen Besitz.
C2 adjective /ˈɪmənənt/

immanent

immanent
Meaning
existing or operating within; inherent
Example
He believed that moral values are immanent in human nature.
Er glaubte, dass moralische Werte in der menschlichen Natur immanent sind.
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 /ˌɪnkənˈsɪdərət/

inconsiderate

rücksichtslos
Meaning
Thoughtless; showing a lack of concern for others.
Example
It was inconsiderate of him to play loud music late at night.
Es war rücksichtslos von ihm, nachts laute Musik zu spielen.
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 /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.
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.
A1 preposition/adverb/adjective/noun /ˌɪnˈsaɪd/

inside

Glück
Meaning
Situated within something; the inner part of something.
Example
She waited inside the house until the rain stopped.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
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 adjective /ˌɪntəˈrɒɡətəri/

interrogatory

interrogativ
Meaning
expressed in the form of a question; relating to questioning
Example
The lawyer’s interrogatory tone made the witness uncomfortable.
Der interrogative Ton des Anwalts machte den Zeugen unwohl.
C1 adjective /ˈɪrɪtəbl/

irritable

reizbar
Meaning
easily annoyed or made angry
Example
She became irritable after working long hours without rest.
Sie wurde reizbar, nachdem sie lange Stunden ohne Ruhe gearbeitet hatte.
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

institutionalisieren
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
Die Regierung strebt danach, den Umweltschutz zu institutionalisieren.
B2 adjective ɪˈmɜː.sɪv

immersive

immersiv
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
Virtuelle Realität schafft eine immersive Lernumgebung.
B2 noun /ɪnˈfɪnɪti/

infinity

unendlich
Meaning
A concept describing something without any limit or end.
Example
The universe seems to stretch into infinity.
Das Universum scheint sich ins Unendliche auszudehnen.
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.
C1 adjective ˌɪn.təˈstel.ər

interstellar

zwischen den Sternen, interstellar, kosmisch
Meaning
Occurring or situated between stars.
Example
Scientists study interstellar travel possibilities.
Wissenschaftler untersuchen die Möglichkeiten der interstellaren Reisen.
B2 adjective /ɪnˈækjərət/

Inaccurate

falsch; ungenau; fehlerhaft
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
Die Wettervorhersage war gestern ungenau.
C1 noun /ˌɪnkoʊˈhɪrəns/

incoherence

Inkohärenz
Meaning
The quality of being unclear, confused, or lacking logical connection.
Example
His speech was full of incoherence and difficult to follow.
Seine Rede war voller Inkohärenz und schwer zu folgen.
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.
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.
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.
B2 verb /ɪnˈveɪd/

invade

invasieren
Meaning
to enter a place or country forcefully, especially as an enemy
Example
The army invaded the neighboring country.
Die Armee hat das benachbarte Land invadierte.