illuminant
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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.
C2 verb /ˌɪntərˈpoʊz/

interpose

einwenden
Meaning
To place or insert between one thing and another; to intervene in a situation.
Example
He quickly interposed himself between the fighters to stop the quarrel.
Er trat schnell zwischen die Kämpfer, um den Streit zu stoppen.
C2 noun /ˌɪnkænˈdɛsəns/

incandescence

Infrarotstrahlung
Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
Die Infrarotstrahlung der Kerze füllte den dunklen Raum.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

Ungültigkeit
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
Das Gericht entschied, dass der Vertrag ungültig war.
C2 verb /ˌɪntərˈmɪt/

intermit

unterbrechen
Meaning
To suspend or stop for a time; to pause intermittently.
Example
The rain would intermit and then start again.
Der Regen würde unterbrechen und dann wieder beginnen.
C2 verb /ˈɪmprɪkeɪt/

imprecate

verfluchen
Meaning
To utter a curse or invoke evil upon someone.
Example
The old woman imprecated her enemies with dark words.
Die alte Frau verfluchte ihre Feinde mit dunklen Worten.
C2 adjective /ɪmˈpɑːlɪtɪk/

impolitic

unüberlegt
Meaning
Unwise or imprudent; not showing good judgment.
Example
It would be impolitic to criticize them openly.
Es wäre unüberlegt, sie öffentlich zu kritisieren.
C2 adjective /ɪˈnɪm.ɪ.tə.bəl/

inimitable

unvergleichlich
Meaning
So good or unusual as to be impossible to copy; unique.
Example
His inimitable writing style made him a literary legend.
Sein unvergleichlicher Schreibstil machte ihn zu einer literarischen Legende.
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 /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 adjective /ɪnˈsɛnseɪt/

insensate

gefühllos
Meaning
lacking physical sensation or empathy; without feeling or sensitivity
Example
The dictator's insensate cruelty shocked the world.
Die gefühllose Grausamkeit des Diktators schockierte die Welt.
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.
C2 noun /ˌɪnkəˈpæsəti/

incapacity

Inkapazität
Meaning
the lack of ability, power, or fitness to do something
Example
His mental incapacity prevented him from making important decisions.
Seine geistige Inkapazität hinderte ihn daran, wichtige Entscheidungen zu treffen.
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.
C2 noun /ˌɪkθiˈɒlədʒi/

ichthyology

Ichthyologie
Meaning
The branch of zoology that deals with fish.
Example
He pursued a degree in ichthyology at the university.
Er hat an der Universität einen Abschluss in Ichthyologie gemacht.
C2 verb /ɪˈluːmɪn/

illumine

beleuchten
Meaning
to light up or make clear
Example
The rising sun illumined the mountain peaks.
Die aufgehende Sonne illuminierte die Gipfel der Berge.
C2 adjective /aɪˈdɒlətrəs/

idolatrous

idolatär
Meaning
Excessively admiring or worshipping someone or something as an idol.
Example
The king was criticized for his idolatrous devotion to wealth.
Der König wurde wegen seiner idolatären Hingabe an den Reichtum kritisiert.
C2 adjective /ɪnˈsuːsiənt/

insouciant

sorglos
Meaning
Showing a casual lack of concern; carefree.
Example
He gave an insouciant shrug and walked away.
Er zuckte sorglos mit den Schultern und ging weg.
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 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.
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 /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.
C2 noun /ˌɪnvəˈluːʃən/

involution

Involution
Meaning
a complicated or intricate form or state; in biology, the shrinking of an organ after its function has finished
Example
The story was full of involution, making it hard to follow.
Die Geschichte war voller Involution, was es schwierig machte, ihr zu folgen.
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.
C2 noun /ˈaɪ.kɒn/

ikon

religiöses Bild oder Symbol
Meaning
A religious image or symbol, especially in the Eastern Orthodox Church.
Example
The church displayed a beautifully painted ikon of the Virgin Mary.
Die Kirche zeigte ein wunderschön gemaltes Ikon der Jungfrau Maria.
C2 verb /ˌɪntərˈsiːd/

intercede

intervenieren
Meaning
to act or plead on behalf of someone in difficulty or trouble; to intervene between parties to help resolve a dispute
Example
She interceded with the teacher to give her brother another chance.
Sie hat beim Lehrer eingegriffen, um ihrem Bruder eine weitere Chance zu geben.
C2 adjective /ɪnˈseɪʃiət/

insatiate

unstillbar
Meaning
impossible to satisfy; always wanting more
Example
He had an insatiate desire for power.
Er hatte ein unstillbares Verlangen nach Macht.
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.
C2 verb /ɪnˈveɪ/

inveigh

heftig kritisieren
Meaning
To speak or write about something with great hostility and criticism.
Example
He inveighed against the corruption in government.
Er kritisierte heftig die Korruption in der Regierung.
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.
C2 verb /ˈɪndjʊˌreɪt/

indurate

verhärten
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
Jahre der Schwierigkeiten härteten seinen Geist.
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 /ˈaɪ.ərn.wʊd/

Ironwood

eisenholz
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
Der Eisenholzbaum blüht mit kleinen weißen Blumen.
C2 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

uncompressibel
Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
Flüssigkeiten gelten im Allgemeinen als uncompressibel.
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 /aɪˈoʊtə/

iota

ein winziger Betrag
Meaning
An extremely small amount.
Example
He did not show an iota of fear.
Er zeigte keinen winzigen Anflug von Angst.
C2 noun /ɪmˈpjuːɪsəns/

impuissance

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

immemorial

unermesslich
Meaning
Extending back beyond memory or record; ancient.
Example
The tradition has been followed since time immemorial.
Die Tradition wird seit unermesslichen Zeiten befolgt.
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.
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.
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.
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.
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.
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.
C2 verb /ɪˈnjʊər/

inure

gewöhnen
Meaning
To become accustomed to something, especially something unpleasant.
Example
Soldiers quickly became inured to the harsh conditions.
Soldaten gewöhnten sich schnell an die harten Bedingungen.
C2 noun /ɪnˈtɜːrmənt/

interment

Beerdigung
Meaning
The act of burying a dead body in a grave or tomb.
Example
The interment took place at the family cemetery.
Die Beerdigung fand auf dem Familienfriedhof statt.
C2 adjective /ɪnˈtɛmpərət/

intemperate

intemperiert
Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
Die intemperierten Bemerkungen des Politikers verursachten Kontroversen.
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.
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.
C2 adjective /ɪˈmɒdərət/

immoderate

immoderat
Meaning
excessive; beyond reasonable limits
Example
He has an immoderate love for sweets.
Er hat eine immoderate Liebe zu Süßigkeiten.
C2 adjective /ɪnˈkɑːdʒɪtənt/

incogitant

unüberlegt
Meaning
Lacking thought; inconsiderate or thoughtless.
Example
It was incogitant of him to make such a rude comment.
Es war inkogitant von ihm, so einen unhöflichen Kommentar zu machen.
C2 noun /ˈaɪ.lət/

islet

Inselchen
Meaning
A very small island.
Example
The fishermen rested on a tiny islet before continuing their journey.
Die Fischer ruhten auf einem kleinen Inselchen, bevor sie ihre Reise fortsetzten.
C2 adjective /ɪnˈkɒnstənt/

inconstant

unbeständig
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
Seine unbeständigen Launen machten es schwierig, mit ihm zu arbeiten.
C2 noun /ɪmˌpɜːrtərbəˈbɪləti/

imperturbability

Unerschütterlichkeit
Meaning
The quality of being calm and not easily disturbed or upset.
Example
Her imperturbability during the crisis impressed everyone.
Ihre Unerschütterlichkeit während der Krise beeindruckte alle.
C2 noun /ˌɪntərpəˈzɪʃən/

interposition

Zwischenkunft
Meaning
The act of intervening or coming between two things, often to influence or prevent an outcome.
Example
The manager’s interposition prevented a heated argument from escalating.
Die Zwischenkunft des Managers verhinderte, dass sich ein hitziger Streit zuspitzte.
C2 adjective /ˌɪrɪˈtriːvəbl/

irretrievable

unwiederbringlich
Meaning
impossible to recover or regain
Example
The documents were lost in an irretrievable way after the fire.
Die Dokumente wurden nach dem Brand auf unwiederbringliche Weise verloren.
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 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.
C2 adverb /ɪnˈdjuːbɪtəbli/

indubitably

zweifellos
Meaning
Without a doubt; certainly.
Example
She is indubitably the best candidate for the job.
Sie ist zweifellos die beste Kandidatin für den Job.
C2 verb /ˌɪnkəˈpæsɪteɪt/

incapacitate

unfähig machen
Meaning
to deprive someone or something of the ability or strength to function
Example
The severe injury incapacitated the player for the rest of the season.
Die schwere Verletzung hat den Spieler für den Rest der Saison außer Gefecht gesetzt.
C2 verb /ɪnˈveɪɡəl/

inveigle

verführen
Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
Sie überredete ihn, den Vertrag zu unterschreiben.
C2 adjective /ˌaɪdəˈlɑːtrɪəs/

idolatrious

götzenverehrend
Meaning
Excessively devoted or reverent towards idols or false gods.
Example
The ancient tribe was known for its idolatrious practices.
Der alte Stamm war für seine götzendienstlichen Praktiken bekannt.
C2 noun /ɪmˈpruː.dəns/

Imprudence

Unvernunft; Nachlässigkeit; Leichtsinn
Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
Seine finanzielle Unvernunft führte in nur zwei Jahren zur Insolvenz.
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.
C2 noun /ˈɪkθiəˌsɔːrz/

ichthyosaurs

Ichtiosaurier (eine Art ausgestorbener Meeresechse)
Meaning
Extinct marine reptiles that resembled fish and dolphins, dominant during the Mesozoic era.
Example
Ichthyosaurs were swift predators of the ancient seas.
Ichtiosaurier waren schnelle Raubtiere der alten Meere.
C2 adjective /ɪmˈperɪʃəbəl/

Imperishable

unvergänglich; ewig; unsterblich
Meaning
not subject to decay; lasting forever; eternal
Example
The imperishable beauty of classical art continues to inspire generations.
Die unvergängliche Schönheit der klassischen Kunst inspiriert weiterhin Generationen.
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.
C2 verb /ɪˈmjʊər/

immure

einsperren
Meaning
to confine or enclose someone against their will
Example
The prisoner was immured in a dark cell.
Der Gefangene wurde in einer dunklen Zelle eingesperrt.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

innerhalb der Institution
Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
Die Universität organisiert jedes Semester intramurale Sportwettkämpfe.
C2 noun /ˈɪndɪkənt/

indicant

anzeiger
Meaning
Something that indicates or points to a fact or condition.
Example
High fever is often an indicant of infection.
Hoher Fieber ist oft ein Anzeiger für eine Infektion.
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 /ˌɪn.ɪˈlʌk.tə.bəl/

ineluctable

unvermeidlich
Meaning
Impossible to avoid or escape; inevitable.
Example
Death is an ineluctable part of human existence.
Der Tod ist ein unvermeidlicher Bestandteil der menschlichen Existenz.
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.
C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

gleichzeitig auftretend
Meaning
Occurring at equal time intervals; in unison or synchrony.
Example
The pendulum swings are isochronous, repeating at equal intervals.
Die Pendelschwingungen sind isochron, wiederholen sich in gleichen Intervallen.
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.
C2 adjective /ˌɪnsəˈprɛsəbl/

insuppressible

unaufhaltsam
Meaning
That cannot be suppressed or restrained.
Example
She had an insuppressible urge to laugh during the ceremony.
Sie hatte einen unaufhaltsamen Drang zu lachen während der Zeremonie.
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.
C2 adjective /ˌɪnkəˈməʊdiəs/

incommodious

ungemütlich
Meaning
Uncomfortably small, cramped, or inconvenient.
Example
We had to stay in an incommodious room during the trip.
Wir mussten während der Reise in einem ungemütlichen Zimmer bleiben.
C2 noun /ˈaɪdɪl/

idyll

idyllische Szene
Meaning
An extremely happy, peaceful, or picturesque episode or scene, often idealized.
Example
Their honeymoon was an idyll on a tropical island.
Ihre Hochzeitsreise war eine idyllische Szene auf einer tropischen Insel.
C2 noun /ˈɪnfəmi/

infamy

Glück
Meaning
the state of being well known for some bad quality or deed
Example
His name will live in infamy for the crimes he committed.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
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.
C2 adjective /ɪˈmɒdɪst/

immodest

überheblich / unanständig
Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
Seine überheblichen Bemerkungen beleidigten das Publikum.
C2 adjective ˌɪn.ɪ.fɪˈkeɪ.ʃəs

inefficacious

ineffektiv
Meaning
Not producing any or the desired effect; ineffective.
Example
The treatment was inefficacious in curing the disease.
Die Behandlung war ineffektiv bei der Heilung der Krankheit.
C2 adjective /ɪnˈɛk.wɪ.tə.bəl/

inequitable

ungerecht
Meaning
Not fair or just; lacking in fairness or equality.
Example
The distribution of resources was inequitable among the workers.
Die Verteilung der Ressourcen war ungerecht unter den Arbeitern.
C2 adjective /ɪnˈvaɪələbl/

inviolable

unverletzlich
Meaning
never to be broken, dishonored, or violated
Example
Human rights are considered inviolable in modern democracies.
Menschenrechte gelten in modernen Demokratien als unverletzlich.
C2 adjective /ɪˈrɛzəluːt/

irresolute

unentschlossen
Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
Er stand unentschlossen an der Kreuzung und wusste nicht, welchen Weg er nehmen sollte.
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.
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.
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 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.
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.
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 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.
C2 noun /ˌɪnˌkeɪpəˈbɪləti/

incapability

Unfähigkeit
Meaning
lack of ability or power to do something; inability or incompetence
Example
His incapability to manage the team led to serious problems.
Seine Unfähigkeit, das Team zu leiten, führte zu ernsthaften Problemen.
C2 noun /ˈɪn.tɪ.ɡreɪ.tɪv dɪˈpləʊ.mə.si/

integrative diplomacy

Integrative Diplomatie
Meaning
A diplomatic approach that seeks to combine or coordinate different elements, interests, or parties into a unified whole.
Example
Integrative diplomacy strengthens alliances.
Integrative Diplomatie stärkt Allianzen.
C2 adjective /ˌɪnkɒntrəˈvɜːtəbl/

incontrovertible

unbestreitbar
Meaning
impossible to deny or dispute; unquestionable
Example
The evidence was incontrovertible and proved his innocence.
Die Beweise waren unbestreitbar und bewiesen seine Unschuld.
C2 noun /ˈɪrɪtənsi/

irritancy

Reizbarkeit
Meaning
the quality or state of causing irritation; legal or formal invalidation
Example
The constant noise became an irritancy to the neighbors.
Der ständige Lärm wurde zu einer Reizbarkeit für die Nachbarn.
C2 noun /ɪmˈpʌlʃən/

impulsion

Impuls
Meaning
a strong urge or drive to act; the act of impelling
Example
His impulsion to travel made him leave his job suddenly.
Sein Impuls, zu reisen, veranlasste ihn dazu, seinen Job plötzlich zu kündigen.
C2 noun /ˈɪnroʊd/

inroad

Fortschritt
Meaning
An advance or significant progress, often at the expense of something else.
Example
The company made significant inroads into the mobile market.
Das Unternehmen hat signifikante Fortschritte im Mobilmarkt gemacht.
C2 noun /ɪnˈtræn.sɪ.dʒəns/

intransigence

Unnachgiebigkeit
Meaning
Refusal to change one's views or to agree about something.
Example
The negotiations failed due to the intransigence of both parties.
Die Verhandlungen scheiterten aufgrund der Unnachgiebigkeit beider Parteien.
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 /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.
C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

arm
Meaning
Having little or no money; poor.
Example
He grew up in an impecunious family.
Er wuchs in einer armen Familie auf.
C2 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

Interpolation
Meaning
The act of inserting something into a text or estimating values within a sequence of data.
Example
The scientist used interpolation to predict the missing data points.
Der Wissenschaftler verwendete Interpolation, um die fehlenden Datenpunkte vorherzusagen.
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.
C2 noun /ˌaɪ.diˈeɪ.ʃən/

ideation

Der Prozess der Bildung und Entwicklung neuer Ideen oder Konzepte durch kreatives Denken und Brainstorming.
Meaning
The process of forming and developing new ideas or concepts through creative thinking and brainstorming.
Example
The team engaged in ideation sessions to generate new product ideas.
Das Team nahm an Ideations-Sitzungen teil, um neue Produktideen zu entwickeln.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

unüberwindbar
Meaning
Impossible to overcome or surpass.
Example
The team faced insuperable challenges during the expedition.
Das Team stand während der Expedition vor unüberwindbaren Herausforderungen.
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 adjective /ˈɪm.pi.əs/

Impious

gotteslästerlich; ungläubig
Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
Die gotteslästerliche Handlung schockierte die religiöse Gemeinschaft.
C2 adjective /ˌɪnæprɪˈhɛnsəbl/

inapprehensible

unverständlich
Meaning
not understandable; incomprehensible
Example
The concept was so abstract that it seemed inapprehensible to most students.
Das Konzept war so abstrakt, dass es für die meisten Studenten unverständlich schien.
C2 adjective /ɪˈnɪkwɪtəs/

iniquitous

ungerechts
Meaning
grossly unfair and morally wrong
Example
Slavery was one of the most iniquitous practices in history.
Sklaverei war eine der ungerechtesten Praktiken in der Geschichte.
C2 verb /ˌɪmpɔːrˈtuːn/

importune

beständig bitten
Meaning
To ask someone persistently or pressingly for something
Example
The child importuned his mother for a new toy.
Das Kind beständigte seine Mutter um ein neues Spielzeug.
C2 noun /ˌɪn.trəˈɡreʃ.ən/

introgression

genetische Introgression
Meaning
The transfer of genetic information from one species to another through repeated backcrossing.
Example
Introgression plays a significant role in plant breeding.
Introgression spielt eine wichtige Rolle in der Pflanzenzucht.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

nicht brennbar
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
Dieses Material ist incombustibel und sicher für den Bau.
C2 noun (compound/erroneous entry) /ɪnˈɛksərəbl ɑːrmi/

inexorableinexorablearmy

unaufhaltsame Armee
Meaning
This appears to be a corrupted or concatenated form; interpreted as 'inexorable army' — an unstoppable or relentless force.
Example
The rebels feared the inexorable army approaching their stronghold.
Die Rebellen fürchteten die unaufhaltsame Armee, die sich ihrer Festung näherte.
C2 noun /ɪnˈkwɪzɪtər/

inquisitor

Inquisitor
Meaning
A person who asks many questions, often in an official or harsh manner.
Example
The inquisitor demanded detailed answers from the witness.
Der Inquisitor forderte detaillierte Antworten vom Zeugen.
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.
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.
C2 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

tadellos
Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
Der Richter war bekannt für seine tadellose Integrität.
C2 noun /ˌɪmprɪˈkeɪʃən/

imprecation

Fluch
Meaning
A spoken curse or expression of strong condemnation.
Example
The angry crowd hurled imprecations at the corrupt official.
Die wütende Menge schleuderte Flüche auf den korrupten Beamten.
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.