irritating
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B1 adjective /ˈɪrɪteɪtɪŋ/

irritating

reizend
Meaning
causing annoyance, impatience, or mild anger
Example
The constant noise from the street is extremely irritating.
Der ständige Lärm von der Straße ist extrem reizend.
C1 verb ɪˈmɜːrs

immerse

eintauchen
Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
Tauche in die neue Sprache ein.
C2 verb /ɪnˈtɜːr/

inter

beerdigen
Meaning
To bury a dead body in the ground.
Example
They decided to inter the soldier with full honors.
Sie beschlossen, den Soldaten mit allen Ehren zu beerdigen.
C2 verb /ɜːrk/

irk

ärgern
Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
Es ärgert mich, wenn Leute ohne anzurufen zu spät kommen.
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 /ɪnˈvɛntɪv/

inventive

erfinderisch
Meaning
Having the ability to create or design new things or to think originally.
Example
The inventor was known for his inventive solutions to everyday problems.
Der Erfinder war bekannt für seine erfinderischen Lösungen für alltägliche Probleme.
B1 noun ɪˈnɪʃətɪv

initiative

Initiative
Meaning
An act or strategy intended to resolve a difficulty or improve a situation; a fresh approach to something.
Example
NASA's initiative to return humans to the Moon is ambitious.
Die Initiative der NASA, Menschen zum Mond zurückzubringen, ist ehrgeizig.
C1 adjective /ɪnˈsɪstənt/

insistent

nachdrücklich
Meaning
demanding something firmly and refusing to accept no
Example
The child was insistent on getting a new toy.
Das Kind war nachdrücklich, ein neues Spielzeug zu bekommen.
C1 verb /ɪnˈkɜːr/

incur

auf sich nehmen
Meaning
To bring upon oneself something undesirable, usually as a result of actions.
Example
He incurred a fine for parking in the wrong place.
Er zog eine Strafe auf sich, weil er an der falschen Stelle parkte.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

Imputation
Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
Der Politiker bestritt die Imputation der Korruption.
A2 adjective /ɪmˈpɑːsəbl/

impossible

unmöglich
Meaning
not able to occur, exist, or be done
Example
It is impossible to finish this work in one day.
Es ist unmöglich, diese Arbeit an einem Tag zu beenden.
C1 noun /ˌɪnsəˈfɪʃənsi/

insufficiency

Unzulänglichkeit
Meaning
The state of not being enough or not being adequate.
Example
The project failed due to the insufficiency of funds.
Das Projekt scheiterte aufgrund der Unzulänglichkeit von Mitteln.
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.
C1 adjective /ɪnˈɡreɪnd/

ingrained

eingewurzelt
Meaning
Firmly fixed or established; deeply rooted and difficult to change.
Example
His ingrained habits were hard to break.
Seine eingewurzelten Gewohnheiten waren schwer zu brechen.
C2 adjective /ˈɪl bred/

Ill-bred

ungezogen
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
Sein ungezogenes Benehmen schockierte alle auf der Dinnerparty.
C2 verb /ɪmˈpeɪl/

impale

aufspießen
Meaning
to pierce or fix something with a sharp object
Example
The knight was impaled by the enemy’s spear.
Der Ritter wurde vom Speer des Feindes aufgespießt.
C1 noun /ɪnˈsɜːrdʒənt/

insurgent

Aufständischer
Meaning
A person who rises in revolt against authority or government.
Example
The army arrested several insurgents after the attack.
Die Armee verhaftete mehrere Aufständische nach dem Angriff.
C1 noun /ˌɪntərˌɒpərəˈbɪləti/

interoperability

Interoperabilität
Meaning
The ability of computer systems or software to exchange and make use of information.
Example
The interoperability of different software systems ensures seamless workflow.
Die Interoperabilität verschiedener Softwaresysteme gewährleistet einen nahtlosen Arbeitsablauf.
B2 noun /ˈɪmɪɡrənt/

immigrant

Einwanderer
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
Die Stadt hat in diesem Jahr viele neue Einwanderer willkommen geheißen.
C1 verb /ɪˈnɔːɡjʊreɪt/

inaugurate

einweihen
Meaning
To formally begin or introduce something, especially with a ceremony.
Example
The mayor will inaugurate the new bridge tomorrow.
Der Bürgermeister wird morgen die neue Brücke einweihen.
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 adverb /ˌɪnsɪˈdɛntəli/

incidentally

übrigens
Meaning
by the way; used to introduce a remark not directly related to the main subject
Example
Incidentally, did you know that she studied in Paris?
Übrigens, wusstest du, dass sie in Paris studiert hat?
C1 adjective /ɪnˈflæməˌtɔːri/

inflammatory

Glück
Meaning
causing inflammation in the body; arousing anger, hostility, or strong emotion
Example
His inflammatory speech triggered protests across the city.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C2 noun /ɪmˌprɒb.əˈbɪl.ə.ti/

Improbability

Unwahrscheinlichkeit
Meaning
the quality or state of being improbable; unlikely to be true or to happen
Example
The improbability of winning the lottery twice didn't stop her from buying tickets.
Die Unwahrscheinlichkeit, zweimal die Lotterie zu gewinnen, hielt sie nicht davon ab, Tickets zu kaufen.
C1 verb /ˌɪntəˈsɛkt/

intersect

schneiden
Meaning
to cross or pass through each other
Example
The two roads intersect at the city center.
Die zwei Straßen schneiden sich im Stadtzentrum.
C1 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 /ˈɪntərfeɪs/

interface

Schnittstelle
Meaning
a point where two systems, subjects, or organizations meet and interact
Example
The user interface is designed to be intuitive and user-friendly.
Die Benutzeroberfläche ist so gestaltet, dass sie intuitiv und benutzerfreundlich ist.
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.
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.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

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

interval

intervall
Meaning
a period of time between two events or points; a pause or break in activity
Example
There was a short interval between the two performances.
Es gab ein kurzes Intervall zwischen den beiden Aufführungen.
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 /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.
B2 noun /ˈɪdɪət/

idiot

Idiot
Meaning
a person who acts in a way that is considered very stupid or foolish
Example
He acted like an idiot at the party last night.
Er benahm sich wie ein Idiot auf der Party letzte Nacht.
B1 verb /ɪnˈvɛs.tɪ.ɡeɪt/

investigate

untersuchen
Meaning
to carry out a systematic inquiry to discover facts or information
Example
The police will investigate the incident thoroughly.
Die Polizei wird den Vorfall gründlich untersuchen.
B2 verb /ˈɪntɪɡreɪt/

integrate

integrieren
Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
Das neue System integriert Daten aus mehreren Quellen.
B2 verb /ɪnˈflɪkt/

inflict

zufügen
Meaning
to cause something unpleasant or painful to be suffered by someone or something
Example
The storm inflicted considerable damage to the city.
Der Sturm fügte der Stadt erheblichen Schaden zu.
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 verb /ˈɪŋkʌlpeɪt/

inculpate

beschuldigen
Meaning
To blame or accuse someone of wrongdoing.
Example
The evidence seemed to inculpate the suspect in the crime.
Die Beweise schienen den Verdächtigen im Verbrechen zu beschuldigen.
B1 noun /ɪnˈɡriːdiənt/

ingredient

Zutat
Meaning
A component part or element of something, especially in a recipe.
Example
Flour is a key ingredient in baking bread.
Mehl ist eine wichtige Zutat beim Brotbacken.
B1 adjective /ˌɪnɪkˈspɛnsɪv/

Inexpensive

günstig; preiswert; erschwinglich
Meaning
not costing a lot of money; affordable; budget-friendly
Example
This restaurant offers delicious and inexpensive meals for students.
Dieses Restaurant bietet köstliche und günstige Mahlzeiten für Studenten an.
C2 adjective /ɪmˈpɪəriəs/

imperious

imperiös
Meaning
Arrogantly domineering or overbearing.
Example
Her imperious tone made it hard for others to argue.
Ihr imperiöser Ton machte es anderen schwer, zu argumentieren.
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.
C2 verb /aɪˈtɪnəˌreɪt/

itinerate

reisen
Meaning
To travel from place to place, usually for the purpose of work or preaching.
Example
The missionary itinerated throughout the region to spread the message.
Der Missionar reiste durch die Region, um die Botschaft zu verbreiten.
B1 verb /ɪnˈstɔːl/

install

installieren
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
Er hat die neue Software auf seinem Computer installiert.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

unerfahren
Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
Die unerfahrene Bedienung der Maschine verursachte mehrere Fehler.
B2 noun /ˈɪnfənt/

infant

Säugling
Meaning
A very young child or baby.
Example
The infant was sleeping peacefully in the cradle.
Der Säugling schlief friedlich im Kinderbett.
C1 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 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.
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.
B2 adjective /ˌɪnfluˈenʃəl/

Influential

einflussreich; mächtig
Meaning
having great influence on someone or something; powerful; persuasive
Example
She is an influential leader in the community.
Sie ist eine einflussreiche Führungskraft in der Gemeinschaft.
C1 noun /ˈɪnstɪˌɡeɪtər/

instigator

Anstifter
Meaning
A person who brings about or initiates something, usually something bad.
Example
The police identified him as the instigator of the violence.
Die Polizei identifizierte ihn als den Anstifter der Gewalt.
B2 verb /ɪnˈstrʌkt/

instruct

anweisen
Meaning
to teach; to give directions
Example
The teacher instructed the students carefully.
Der Lehrer wies die Schüler sorgfältig an.
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.
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.
B1 adjective /ˈɪnər/

inner

inner
Meaning
Located inside or closer to the center; relating to one’s thoughts or feelings.
Example
She shared her inner thoughts with her best friend.
Sie teilte ihre inneren Gedanken mit ihrer besten Freundin.
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.
B2 noun /ɪnˈhæbɪtənt/

inhabitant

Einwohner
Meaning
a person or animal that lives in a particular place
Example
The inhabitants of the village rely on farming for their livelihood.
Die Einwohner des Dorfes sind auf die Landwirtschaft angewiesen, um ihren Lebensunterhalt zu sichern.
C1 adjective /ɪˈnɜːrt/

inert

inaktiv
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
Der Patient blieb regungslos im Bett.
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.
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.
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.
C2 verb /ˈɪntərˌdɪkt/

interdict

verbieten
Meaning
to prohibit or forbid something by authoritative order, often by law or decree
Example
The court moved to interdict the sale of the illegal goods.
Das Gericht beschloss, den Verkauf der illegalen Waren zu verbieten.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

Unachtsamkeit
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
Der Fehler geschah durch reine Unachtsamkeit.
B2 verb /ɪˈnɪʃieɪt/

initiate

einleiten
Meaning
to begin or start; to introduce someone to a new activity
Example
The company will initiate a new training program.
Das Unternehmen wird ein neues Schulungsprogramm einleiten.
C1 adverb /ˌɪn.ədˈvɜːr.tənt.li/

Inadvertently

unbeabsichtigt; versehentlich; aus Versehen
Meaning
without being aware of what you are doing; unintentionally; by mistake
Example
She inadvertently deleted the important file while cleaning her computer.
Sie hat versehentlich die wichtige Datei gelöscht, während sie ihren Computer gereinigt hat.
C2 noun /ɪmˈpaɪ.ə.ti/

Impiety

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

implemented

umgesetzt
Meaning
Put a decision or plan into effect; carried out or executed.
Example
The master plans were partially implemented.
Die Masterpläne wurden teilweise umgesetzt.
B1 noun /ˌɪntərˈækʃən/

interaction

gegenseitige Interaktion
Meaning
The process of people or things acting upon or influencing each other.
Example
The teacher encouraged more interaction between students.
Der Lehrer förderte mehr Interaktion zwischen den Schülern.
C2 noun /ɪnˈtɜːrstɪs/

interstice

Spalt
Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
Das Licht filterte durch die schmalen Spalten der Wand.
C1 adjective /ˌɪndɪˈskrɪmɪnət/

indiscriminate

willkürlich
Meaning
Done without careful judgment; random or haphazard.
Example
The indiscriminate use of pesticides harms the environment.
Der willkürliche Einsatz von Pestiziden schadet der Umwelt.
C1 noun /ɪmˈpɜːrtɪnəns/

impertinence

Unverschämtheit
Meaning
lack of respect; rudeness
Example
The teacher was shocked by the student's impertinence.
Der Lehrer war schockiert über die Unverschämtheit des Schülers.
C1 noun /ɪmˈpjʊərəti/

impurity

Unreinheit
Meaning
the state of being unclean or contaminated; a substance that makes something impure
Example
The scientist removed every impurity from the water sample.
Der Wissenschaftler entfernte jede Unreinheit aus der Wasserprobe.
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 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.
B1 verb /ɪmˈprɛs/

impress

beeindrucken
Meaning
to cause someone to feel admiration or respect
Example
Her speech managed to impress the audience.
Ihre Rede hat das Publikum beeindruckt.
C1 noun ˌɪrɪˈvɜːrsəbl ˈdæmɪdʒ

irreversible damage

unwiederbringlicher Schaden
Meaning
Harm or injury that cannot be undone or repaired.
Example
Climate change causes irreversible damage to ecosystems.
Der Klimawandel verursacht unwiederbringlichen Schaden an Ökosystemen.
B2 noun /ɪnˈtɜː.prə.tər/

Interpreter

Dolmetscher; Übersetzer;
Meaning
a person who translates orally from one language into another; someone who explains meaning
Example
The international conference hired professional interpreters to translate speeches in real time.
Die internationale Konferenz engagierte professionelle Dolmetscher, um Reden in Echtzeit zu übersetzen.
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.
B2 adjective /ˌɪnsəˈfɪʃənt/

insufficient

unzureichend
Meaning
Not enough; inadequate.
Example
His explanation was insufficient to clear the confusion.
Seine Erklärung war unzureichend, um die Verwirrung zu klären.
C2 noun /ˌɪmpəˈtjuːəsəti/

impetuosity

Impulsivität
Meaning
The quality of being rash or impulsive.
Example
His impetuosity often got him into trouble.
Seine Impetuosität brachte ihn oft in Schwierigkeiten.
C1 adjective /ɪmˈprɒbəbl/

improbable

unwahrscheinlich
Meaning
Not likely to be true or to happen.
Example
It seems improbable that he will arrive on time.
Es scheint unwahrscheinlich, dass er pünktlich ankommt.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

Inkonstanz
Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
Die Inkonstanz des Wetters erschwert die Planung.
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 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.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

zunehmend
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
Die Menschen sind zunehmend besorgt über den Klimawandel.
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.
C1 adjective /ɪmˈpɜːmiəbl/

impermeable

undurchlässig
Meaning
Not allowing fluid or gas to pass through.
Example
The container is made of impermeable plastic.
Der Behälter besteht aus undurchlässigem Kunststoff.
B2 adjective /ˈɪnfɪnɪt/

infinite

unendlich
Meaning
limitless or endless in space, extent, or number
Example
The universe is often described as infinite.
Das Universum wird oft als unendlich beschrieben.
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.
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

schmeichelhaft
Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
Sein schmeichelhaftes Lächeln brachte alle dazu, ihm schnell zu vertrauen.
B2 noun /ɪnˈsaɪdə/

insider

Insider
Meaning
a person within a group or organization who has access to confidential information
Example
He was an insider who knew all the company's secrets.
Er war ein Insider, der alle Geheimnisse der Firma kannte.
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.
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

Idealismus
Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
Sein jugendlicher Idealismus motivierte ihn, sich verschiedenen sozialen Gerechtigkeitsbewegungen anzuschließen.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

unbedeutend
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
Die Kosten waren so unbedeutend, dass niemand sie bemerkte.
C1 noun /ˈaɪsətəʊp/

isotope

Isotop
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
Kohlenstoff-14 ist ein radioaktives Isotop, das in der Fossilien-Datierung verwendet wird.
B1 verb ɪnˈspaɪər

inspire

inspirieren
Meaning
To fill someone with the urge or ability to do or feel something, especially creative or noble.
Example
Artemis seeks to inspire future generations.
Artemis strebt danach, zukünftige Generationen zu inspirieren.
A2 adverb /ɪnˈdiːd/

indeed

in der Tat
Meaning
used to emphasize or confirm a statement
Example
It was a long journey indeed.
Es war eine lange Reise, in der Tat.
C2 adjective /ˌɪnɪkˈstrɪkəbl/

inextricable

untrennbar
Meaning
Impossible to separate or escape from.
Example
The two friends shared an inextricable bond.
Die beiden Freunde teilten ein untrennbares Band.
C1 adjective /ɪnˈedəbəl/

Inedible

ungenießbar
Meaning
not suitable or safe for eating; not edible
Example
The mushrooms were poisonous and completely inedible.
Die Pilze waren giftig und völlig ungenießbar.
C1 noun (plural) /ˈɪndɪˌsiːz/

indices

Indizes
Meaning
plural form of index; statistical measures or reference points used for comparison
Example
Stock market indices fell sharply after the announcement.
Die Indizes des Aktienmarkts fielen nach der Bekanntgabe stark.
B2 noun ɪnˈfleɪʃən

inflation

Inflation
Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
Inflation verringert die Kaufkraft der Verbraucher.
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 adjective /ˌɪnkəʊˈhɪərənt/

incoherent

inkohärent
Meaning
Not clear or easy to understand; lacking logical connection.
Example
His explanation was so incoherent that nobody could follow it.
Seine Erklärung war so inkohärent, dass niemand ihr folgen konnte.
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.
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.
B2 adjective /ɪnˈvɪz.ə.bəl/

Invisible

unsichtbar
Meaning
unable to be seen; not visible to the eye
Example
The bacteria are invisible without a microscope.
Bakterien sind unsichtbar ohne ein Mikroskop.
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

Armut
Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
Die Wohltätigkeitsorganisation wurde gegründet, um Menschen zu helfen, die in Armut leben.
C1 noun /ɪnˈsɜːrdʒəns/

insurgence

Aufstand
Meaning
An act of rebellion or uprising against authority.
Example
The government struggled to contain the growing insurgence.
Die Regierung hatte Schwierigkeiten, den wachsenden Aufstand zu bekämpfen.
A2 adjective /ɪnˈtɛlɪdʒənt/

intelligent

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

impotent

machtlos
Meaning
Lacking power, ability, or strength to take effective action.
Example
The citizens felt impotent against the corrupt system.
Die Bürger fühlten sich machtlos gegen das korrupte System.
C1 noun /ˈɪn.floʊ/

inflow

Zufluss
Meaning
The movement of things such as money, people, or water into a place.
Example
The inflow of tourists boosted the local economy.
Der Zufluss von Touristen hat die lokale Wirtschaft angekurbelt.
B1 noun ɪˈnɪʃətɪvz

initiatives

Initiativen
Meaning
Actions or strategies designed to resolve a difficulty or improve a situation; programs or projects.
Example
Community initiatives benefit underprivileged groups.
Gemeinschaftsinitiativen kommen benachteiligten Gruppen zugute.
C1 adjective /ˈɪnbɔːrn/

Inborn

angeboren; von Geburt an; inherenz
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
Sie hat ein angeborenes Talent für Musik.
C1 adjective /ɪmˈpɛndɪŋ/

impending

bevorstehend
Meaning
about to happen soon, usually something unpleasant or threatening
Example
The villagers were worried about the impending flood.
Die Dorfbewohner waren besorgt über die bevorstehende Flut.
C1 adjective /ˌɪndɪˈvɪzəbl/

indivisible

unteilbar
Meaning
Not able to be divided or separated.
Example
The country's unity was indivisible despite differences.
Die Einheit des Landes war trotz der Unterschiede unteilbar.
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 verb /ɪnˈsteɪt/

instate

einsetzen
Meaning
To set up in position, office, or authority.
Example
The board decided to instate her as the new director.
Der Vorstand entschied, sie als neue Direktorin zu installieren.
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.
C2 adjective /ɪˈrɛfrəɡəbəl/

irrefragable

unwiderlegbar
Meaning
Impossible to refute, deny, or break
Example
The lawyer presented irrefragable evidence that proved his client’s innocence.
Der Anwalt präsentierte unwiderlegbare Beweise, die die Unschuld seines Mandanten belegten.