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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 ˌɪn.tuˈɪʃ.ən

intuition

Intuition
Meaning
The ability to understand something immediately, without the need for conscious reasoning.
Example
Her intuition told her something was wrong.
Ihre Intuition sagte ihr, dass etwas nicht stimmte.
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.
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.
C2 adjective /ˌɪnkoʊˈɜːrsəbl̩/

incoercible

unbezwingbar
Meaning
Not capable of being forced, compelled, or restrained.
Example
Her incoercible spirit inspired others to fight for justice.
Ihr unbezwingbarer Geist inspirierte andere, für Gerechtigkeit zu kämpfen.
C2 noun /ɪnˈtɒksɪkənt/

intoxicant

Rauschmittel
Meaning
a substance, especially alcohol or a drug, that causes intoxication
Example
Alcohol is the most commonly used intoxicant in many cultures.
Alkohol ist das am häufigsten verwendete Rauschmittel in vielen Kulturen.
B2 adjective /ˌɪnsɪˈkjʊə/

insecure

unsicher
Meaning
not confident or assured; uncertain and anxious
Example
She felt insecure about her performance in the exam.
Sie fühlte sich unsicher über ihre Leistung in der Prüfung.
C2 noun /ɪmˈprɑːvɪdəns/

improvidence

Vorsehenslosigkeit
Meaning
Lack of foresight or care for future needs.
Example
His improvidence led to financial difficulties.
Seine Vorsehenslosigkeit führte zu finanziellen Schwierigkeiten.
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.
C1 adjective ɪnˈsaɪ.sɪv

incisive

scharfsinnig
Meaning
Intelligently analytical and clear-thinking; showing clear thought and good understanding of what is important.
Example
His incisive comments revealed the core issues.
Seine scharfsinnigen Kommentare enthüllten die Kernprobleme.
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.
B2 adjective /ɪˈmædʒ.ɪ.nər.i/

Imaginary

imaginär; fiktiv; nicht real
Meaning
existing only in imagination; not real; fictional
Example
The child had an imaginary friend who she talked to every day.
Das Kind hatte einen imaginären Freund, mit dem es jeden Tag sprach.
C1 noun /ɪmˌpɜː.sənˈeɪ.ʃən/

impersonation

Identitätsdiebstahl
Meaning
The action of pretending to be another person for the purpose of entertainment or fraud.
Example
Online impersonation is a serious cybercrime.
Online-Identitätsdiebstahl ist ein ernstes Cyberverbrechen.
B2 adverb /ɪmˈpɒlɪtli/

impolitely

unhöflich
Meaning
in a rude or discourteous manner; without showing respect or proper manners
Example
He spoke impolitely to the waiter despite the polite service.
Er sprach unhöflich mit dem Kellner trotz des guten Services.
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.
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.
C1 adjective /ɪˈrɛfjʊtəbəl/

Irrefutable

unwiderlegbar
Meaning
impossible to deny or disprove; undeniable
Example
The evidence against him was irrefutable.
Der Beweis gegen ihn war unwiderlegbar.
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 noun /ˌɪnkrɪˈdjuːləti/

incredulity

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

ingest

einnehmen
Meaning
To take food, drink, or another substance into the body, usually by swallowing.
Example
The patient must ingest the medicine with water.
Der Patient muss das Medikament mit Wasser einnehmen.
C1 adjective /ɪnˈkwɪzɪtɪv/

inquisitive

neugierig
Meaning
Curious or eager to learn and ask questions.
Example
The inquisitive child asked endless questions about the stars.
Das neugierige Kind stellte unzählige Fragen über die Sterne.
C1 noun /ˈɪm.pæs/

impasse

Stillstand
Meaning
A situation where no progress is possible.
Example
The negotiations reached an impasse, delaying the agreement.
Die Verhandlungen erreichten einen Stillstand, der die Vereinbarung verzögerte.
C1 noun /ɪnˈkɜːrʒən/

incursion

Invasion
Meaning
A sudden attack or invasion into a place or territory.
Example
The army repelled the enemy incursion at the border.
Die Armee schlug die feindliche Invasion an der Grenze zurück.
C1 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.
B2 verb aɪˈdɛntɪfaɪd

identified

identifiziert
Meaning
To recognize or establish who or what someone or something is.
Example
The root causes of the issue need to be identified.
Die Grundursachen des Problems müssen identifiziert werden.
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.
B1 adjective /ɪmˈpres.ɪv/

Impressive

beeindruckend
Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
Ihre beeindruckende Darbietung brachte ihr eine Standing Ovation.
C2 verb /ɪnˈfætʃueɪt/

infatuate

verzücken
Meaning
to inspire with an intense but short-lived passion or admiration
Example
He was infatuated with her beauty.
Er war von ihrer Schönheit verzaubert.
C1 noun /ˈɪŋklɪŋ/

inkling

Ahnung
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
Sie hatte einen leichten Verdacht, dass er eine Überraschung plante.
B2 adjective /ɪnˈtɛns/

intense

intensiv
Meaning
Of extreme force, degree, or strength.
Example
She felt intense pain after the accident.
Sie fühlte nach dem Unfall intensive Schmerzen.
C1 adjective; noun /ɪˈmɔːrtl/

immortal

unsterblich
Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
Mythen sprechen von unsterblichen Wesen.
B2 noun /ˈɪnˌsaɪt/

insight

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

introspective

introspektiv
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
Schriftsteller neigen dazu, hochgradig introspektive Individuen zu sein.
B2 noun /aɪˈdiː/

id

Ausweis
Meaning
identification; a document or number used to prove who someone is
Example
Please show your ID at the entrance.
Bitte zeigen Sie Ihren Ausweis am Eingang.
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

zwischenmenschlich
Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
Er hat ausgezeichnete zwischenmenschliche Fähigkeiten und kommt gut mit anderen aus.
B1 verb /aɪˈdentɪfaɪ/

identify

identifizieren
Meaning
to recognize; to establish who someone is
Example
Can you identify the suspect?
Können Sie den Verdächtigen identifizieren?
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

gotteslästerlich
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
Einige Menschen in der Gemeinschaft betrachten ihn als gottlos, weil er nie religiösen Gottesdiensten beiwohnt.
C1 adjective ˈɪn.tər.ɪm

interim

interimistisch
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
Interim-Regierungen verwalten Übergangsphasen.
C2 noun /ɪˈreɪdiəns/

irradiance

Strahlung
Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
Die Strahlung der Sonne zur Mittagszeit war überwältigend.
C2 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.
A1 noun /ˈɪntənet/

internet

globales Computernetzwerk
Meaning
A global computer network providing a variety of information and communication facilities.
Example
The internet has revolutionized the way we access information.
Das Internet hat die Art und Weise revolutioniert, wie wir auf Informationen zugreifen.
C1 adjective /ˌɪnədˈvɜːrtənt/

inadvertent

unbeabsichtigt, unbeabsichtigt
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
Ihr unbeabsichtigter Fehler verursachte eine Verzögerung im Projekt.
A1 pronoun /ɪts/

its

sein
Meaning
Belonging to or associated with a thing previously mentioned.
Example
The company changed its logo last year.
Das Unternehmen hat letztes Jahr sein Logo geändert.
C2 adjective /ˌaɪ.kə.nəˈklæs.tɪk/

iconoclastic

gekennzeichnet durch das Angreifen oder Ablehnen von etablierten Überzeugungen, Traditionen oder Werten
Meaning
Characterized by attacking or rejecting cherished beliefs, traditions, or established values.
Example
Her iconoclastic views challenged the conventional wisdom of the industry.
Ihre ikonoklastischen Ansichten stellten die konventionelle Weisheit der Branche in Frage.
C1 adjective /ɪnˈseɪʃəbl̩/

insatiable

unersättlich
Meaning
impossible to satisfy; always wanting more
Example
Her insatiable curiosity drove her to read every book in the library.
Ihre unersättliche Neugier trieb sie dazu, jedes Buch in der Bibliothek zu lesen.
B2 noun ˌɪm.plɪˈkeɪ.ʃən

implication

Implikation
Meaning
A conclusion that can be drawn from something although it is not explicitly stated; a likely consequence.
Example
The implication of climate change is severe.
Die Implikation des Klimawandels ist schwerwiegend.
C1 adjective /ɪnˈsɛp(ə)rəbəl/

inseparable

unzertrennlich
Meaning
Unable to be separated or always together.
Example
The two friends have been inseparable since childhood.
Die beiden Freunde sind seit ihrer Kindheit unzertrennlich.
C1 noun /ɪmˈpɜː.mə.nəns/

impermanence

Vergänglichkeit
Meaning
The state or fact of lasting for only a limited period of time.
Example
The philosophy of Buddhism emphasizes the impermanence of life.
Die buddhistische Philosophie betont die Vergänglichkeit des Lebens.
B2 noun /ˌɪnəˈbɪləti/

inability

unfähigkeit
Meaning
the state of being unable to do something
Example
His inability to make decisions affected his career.
Seine Unfähigkeit, Entscheidungen zu treffen, beeinträchtigte seine Karriere.
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.
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 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.
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.
A1 adjective /ɪmˈpɔː.tənt/

important

wichtig
Meaning
Of great significance or value; likely to have a profound effect on success, survival, or well-being.
Example
Important steps must be taken to address pollution.
Wichtige Schritte müssen unternommen werden, um die Verschmutzung zu bekämpfen.
C1 noun /ɪnˌtɪmɪˈdeɪʃən/

intimidation

Einschüchterung
Meaning
The action of frightening or threatening someone to make them do something.
Example
The workers reported cases of intimidation by the management.
Die Arbeiter berichteten über Fälle von Einschüchterung durch das Management.
B2 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.
A2 noun/verb /ˈɪntrəst/ or /ˈɪntəˌrɛst/

interest

Interesse / Zinsen
Meaning
A feeling of curiosity or concern about something; or money paid for the use of borrowed money.
Example
He showed great interest in learning new languages.
Er zeigte großes Interesse daran, neue Sprachen zu lernen.
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.
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.
C1 noun ɪmˈpɛə(r)mənt

impairment

Schaden, Behinderung
Meaning
The state of being damaged or weakened; a disability or handicap.
Example
Hearing impairment can be caused by long-term exposure to loud noise.
Hörverlust kann durch längere Exposition gegenüber lauten Geräuschen verursacht werden.
C1 verb /ɪnˈfleɪm/

inflame

entzünden
Meaning
to arouse strong feelings or provoke anger; to cause inflammation in the body
Example
The politician's remarks served to inflame public opinion.
Die Bemerkungen des Politikers haben dazu beigetragen, die öffentliche Meinung zu entflammen.
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.
A2 noun /ˌɪnvɪˈteɪʃən/

invitation

Glück
Meaning
a written or spoken request to attend an event or to participate in something
Example
She sent me an invitation to her wedding.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C2 noun /ˌɪntərˈrɛɡnəm/

interregnum

Interregnum
Meaning
A period between rulers or governments when normal leadership is suspended.
Example
The country faced instability during the interregnum after the king’s death.
Das Land erlebte Instabilität während des Interregnums nach dem Tod des Königs.
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.
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 /ɪnˈdiːsənt/

indecent

unanständig
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
Er wurde wegen einer unanständigen Bemerkung verwarnt.
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 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.
C1 noun /ɪnˈɛk.wɪ.ti/

inequity

Ungerechtigkeit
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
Soziale Ungerechtigkeit bleibt ein globales Problem.
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

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

imperfection

Unvollkommenheit
Meaning
a flaw, defect, or weakness; the state of being imperfect
Example
She accepted her imperfection as part of being human.
Sie akzeptierte ihre Unvollkommenheit als Teil des Menschseins.
C2 noun /ɪnˈfriːkwəns/

infrequence

Seltenheit
Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
Die Seltenheit ihrer Treffen erschwerte es, enge Beziehungen aufrechtzuerhalten.
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 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.
C2 noun /ˈaɪdlər/

idler

Faulenzer
Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
Er war bekannt als ein Faulenzer, der seine Tage verschwendete.
C2 verb /ˌɪn.trəˈmɪt/

intromit

einführen
Meaning
To insert or introduce something into a place or body.
Example
The doctor carefully intromitted the instrument into the wound.
Der Arzt führte das Instrument vorsichtig in die Wunde ein.
B1 adverb /ˈɪnstəntli/

instantly

sofort
Meaning
immediately, without any delay
Example
He replied instantly to the message.
Er antwortete sofort auf die Nachricht.
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

Hindernis
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
Der Mangel an Mitteln ist ein großes Hindernis für das Projekt.
C1 noun ɪnˌɛv.ɪ.təˈbɪl.ɪ.ti

inevitability

Unvermeidbarkeit
Meaning
The quality of being certain to happen and impossible to avoid or prevent.
Example
The inevitability of change is a part of life.
Die Unvermeidbarkeit des Wandels ist ein Teil des Lebens.
C1 verb /ɪmˈpɪndʒ/

impinge

beeinflussen
Meaning
to have an effect or impact on something; to encroach or infringe
Example
The noise from the construction site impinges on our daily activities.
Der Lärm von der Baustelle beeinflusst unsere täglichen Aktivitäten.
C1 adjective /ɪˈlɪsɪt/

illicit

illegal
Meaning
Forbidden by law, rules, or custom.
Example
The police shut down the illicit drug operation.
Die Polizei hat den illegalen Drogenhandel gestoppt.
A2 adjective /ɪl/

Ill

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

industrious

fleißig
Meaning
Hardworking and diligent in one's duties.
Example
She is an industrious student who always completes her assignments on time.
Sie ist eine fleißige Studentin, die immer ihre Aufgaben rechtzeitig erledigt.
B2 noun /ɪnˈveɪʒən/

invasion

Invasion
Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
Die Armee bereitete sich auf die Möglichkeit einer Invasion vor.
B2 adjective /ɪˈrɛləvənt/

Irrelevant

irrelevant
Meaning
not connected with or relevant to something; having no bearing on the matter
Example
Your past mistakes are irrelevant to this discussion.
Ihre vergangenen Fehler sind irrelevant für diese Diskussion.
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.
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.
C1 adjective /ˈaɪərnˌklæd/

ironclad

eiserne
Meaning
impossible to change, break, or dispute; very strong and firm
Example
The company had an ironclad contract with its suppliers.
Das Unternehmen hatte einen eisernen Vertrag mit seinen Lieferanten.
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 adjective/noun /ɪˈrɑːki/

iraqi

irakisch
Meaning
relating to Iraq or its people
Example
The Iraqi culture is rich and diverse.
Die irakische Kultur ist reich und vielfältig.
B1 verb /ˈɪndɪkeɪt/

indicate

anzeigen
Meaning
to point out; to show or suggest; to be a sign of
Example
The red light indicates that you should stop.
Das rote Licht zeigt an, dass du anhalten solltest.
C1 adjective /ɪˈnɔːrdənət/

inordinate

übermäßig
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
Sie verbrachte eine übermäßige Zeit mit ihrem Telefon.
B1 verb ˈɪndɪkeɪts

indicates

zeigt an
Meaning
Point out; show; be a sign or symptom of; suggest as a desirable or necessary course of action.
Example
The rising trend indicates an urgent need for action.
Der steigende Trend zeigt einen dringenden Handlungsbedarf an.
C1 adjective /ɪmˈpæsəbəl/

impassable

unpassierbar
Meaning
Impossible to travel along or over.
Example
The road became impassable after the heavy snowfall.
Die Straße wurde nach dem schweren Schneefall unpassierbar.
C2 noun /ˌɪntərˈsɛʃən/

intercession

Fürbitte
Meaning
the act of intervening or pleading on behalf of another person
Example
The prisoner was released due to the intercession of influential leaders.
Der Gefangene wurde aufgrund der Fürbitte einflussreicher Führer freigelassen.
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.
C1 noun /ɪnˈsɜːʃən/

insertion

Einfügung
Meaning
the action of inserting something into something else
Example
The insertion of the new data was completed successfully.
Die Einfügung der neuen Daten wurde erfolgreich abgeschlossen.
B2 noun ɪˈlɪtərəsi

illiteracy

Illiteralismus
Meaning
The inability to read and write; lack of education or knowledge in a particular area.
Example
Illiteracy often leads to poverty and unemployment.
Illiteralismus führt oft zu Armut und Arbeitslosigkeit.
B2 noun /ɪnˈfek.ʃən/

Infection

Infektion
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
Der Arzt verschrieb Antibiotika, um die bakterielle Infektion in ihrem Hals zu behandeln.
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.
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

irideszierender Glanz
Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
Die Flügel des Schmetterlings schimmerten mit irideszierendem Glanz.
C2 noun /ˌɪmprəˈsɑːrioʊ/

impresario

Impresario
Meaning
A person who organizes or finances concerts, plays, or operas.
Example
The impresario arranged a series of concerts for the rising star.
Der Impresario organisierte eine Reihe von Konzerten für den aufstrebenden Star.
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

Meaning
To gain favor or approval by deliberate effort, often in a flattering way.
Example
She tried to ingratiate herself with her boss by complimenting him often.
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.
C1 adjective /ˌɪnhɒˈspɪtəbl/

inhospitable

unwirtlich
Meaning
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
Example
The desert is an inhospitable environment for most plants.
Die Wüste ist ein unwirtliches Umfeld für die meisten Pflanzen.
C1 adjective /ˌɪnɔːrˈɡænɪk/

inorganic

anorganisch
Meaning
relating to substances that are not derived from living organisms; lacking organic structure or growth
Example
Inorganic compounds are commonly studied in chemistry labs.
Anorganische Verbindungen sind wichtig in der Chemie.
B2 adverb /ɪmˈpɔːtəntli/

importantly

wichtigerweise
Meaning
in a way that is of great significance or value
Example
Importantly, the report highlights the need for immediate action.
Wichtigerweise hebt der Bericht die Notwendigkeit sofortiger Maßnahmen hervor.
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

irreversibel
Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
Der durch das Feuer verursachte Schaden war irreversibel.
C1 noun ˌɪn.fɪlˈtreɪ.ʃən

infiltration

Infiltration, heimlicher Zugang
Meaning
The process of entering or gaining access to an organization or place surreptitiously.
Example
Cybersecurity prevents infiltration into sensitive data.
Cybersicherheit verhindert die Infiltration in sensible Daten.
B2 adjective ˌɪnstrəˈmɛntl

instrumental

instrumentell
Meaning
Serving as a crucial means, agent, or tool; having a part in bringing about a result.
Example
Children can be instrumental in building a better society.
Kinder können bei der Schaffung einer besseren Gesellschaft eine wichtige Rolle spielen.
B2 noun /ɪnˈdʌstriəl ˌrɛvəˈluːʃən/

Industrial Revolution

Industrielle Revolution
Meaning
The rapid development of industry that occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery and characterized by the use of steam power and the growth of factories.
Example
The Industrial Revolution marked a shift in production processes.
Die industrielle Revolution markierte einen Wandel in den Produktionsprozessen.
C1 noun ɪnˈflɛk.ʃən

inflection

Intonation
Meaning
The change in pitch or tone of voice when speaking for emphasis.
Example
His inflection kept the audience engaged.
Seine Intonation hielt das Publikum gebannt.
C1 adjective /ɪnˈsɒlvənt/

insolvent

zahlungsunfähig
Meaning
unable to pay debts owed
Example
The insolvent firm could not meet its financial obligations.
Das zahlungsunfähige Unternehmen konnte seinen finanziellen Verpflichtungen nicht nachkommen.
C2 adjective /ˌɪnkɔːrˈpɔːriəl/

incorporeal

inkorporell
Meaning
lacking a physical body; not composed of matter; intangible
Example
Ghosts are often described as incorporeal beings.
Gespenster werden oft als inkorporeelle Wesen beschrieben.
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 /ˌɪndɪˈsɜːrnəbl/

indiscernible

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

infernal

höllisch
Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
Die Arbeiter beschwerten sich über den höllischen Lärm von der Baustelle.
C2 adjective /ɪmˈprɛɡnəbl̩/

impregnable

uneinnehmbar
Meaning
Unable to be captured, broken into, or defeated.
Example
The fortress was considered impregnable by the enemy.
Die Festung wurde vom Feind als uneinnehmbar angesehen.