illness
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A2 noun /ˈɪlnəs/

illness

Krankheit
Meaning
A condition of being unwell or suffering from a disease.
Example
She missed school due to a serious illness.
Sie hat die Schule wegen einer schweren Krankheit verpasst.
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.
C2 adjective /ˌɪrɪˈdɛsənt/

iridescent

irisierend
Meaning
showing luminous colors that seem to change when seen from different angles
Example
She wore an iridescent dress that sparkled in the light.
Sie trug ein irisierendes Kleid, das im Licht funkelte.
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.
C1 noun /ˌɪməˈrælɪti/

immorality

Unmoral
Meaning
the quality of being immoral; behavior that violates accepted moral standards
Example
The community condemned the immorality of the corrupt officials.
Die Gemeinschaft verurteilte die Unmoral der korrupten Beamten.
C1 adjective /ɪnˈtændʒəbl/

intangible

immateriell
Meaning
Unable to be touched or grasped; not having a physical presence.
Example
Trust is an intangible quality in relationships.
Vertrauen ist eine immaterielle Eigenschaft in Beziehungen.
B2 noun /ɪnˈspekʃən/

inspection

Inspektion
Meaning
a careful examination of something, especially to check that it is correct or safe
Example
The building passed the safety inspection last week.
Das Gebäude hat die Sicherheitsinspektion letzte Woche bestanden.
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

Institut
Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
Die Universität beschloss, neue Regeln für die Bibliothek einzuführen.
C1 adjective /ɪmˈpɛtʃ.u.əs/

impetuous

impulsiv
Meaning
Acting or done quickly and without thought or care; impulsive.
Example
His impetuous decision led to unexpected consequences.
Seine impulsive Entscheidung führte zu unerwarteten Konsequenzen.
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 noun /ˌɪnkənˈsɪstənsi/

inconsistency

Inkonsistenz
Meaning
The quality of being contradictory, irregular, or not staying the same.
Example
There is an inconsistency between his words and actions.
Es gibt eine Inkonsistenz zwischen seinen Worten und Taten.
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.
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.
C2 noun /ɪnˈvɛktɪv/

invective

beleidigende Sprache
Meaning
Insulting, abusive, or highly critical language.
Example
The politician’s speech was filled with invective against his opponents.
Die Rede des Politikers war voller beleidigender Sprache gegen seine Gegner.
C2 noun /ɪnˈtɛɡ.jʊ.mənt/

integument

äußere Hülle
Meaning
A natural outer covering, such as skin, shell, or rind.
Example
The snake sheds its integument as it grows.
Die Schlange verliert ihre äußere Hülle, wenn sie wächst.
B1 adjective ɪnˈdʌs.tri.əl

industrial

industriell
Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
Industrielle Sektoren steigern den Export.
C1 noun /ˈɪn.tə.lekt/

intellect

Intellekt
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
Ihr Intellekt wird von allen ihren Kollegen bewundert.
B2 noun /ɪnˈdʒɛkʃən/

injection

Injektion
Meaning
the act of introducing a substance into the body through a needle
Example
The nurse gave me an injection to prevent the infection.
Die Krankenschwester gab mir eine Injektion, um die Infektion zu verhindern.
C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

Instrumentalist
Meaning
A person who plays a musical instrument.
Example
The instrumentalist played a beautiful solo on the violin.
Der Instrumentalist spielte ein schönes Solo auf der Violine.
C1 adjective /ɪmˈpæʃənd/

impassioned

leidenschaftlich
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
Sie hielt eine leidenschaftliche Rede über Menschenrechte.
C1 adjective /ˌɪnɪkˈskjuːzəbl/

inexcusable

unentschuldbar
Meaning
Too bad to be justified or overlooked; unforgivable.
Example
His rude behavior was inexcusable.
Sein unhöfliches Verhalten war unentschuldbar.
C1 adjective /ɪˈnɛpt/

inept

ungeschickt
Meaning
lacking skill or ability; clumsy or incompetent
Example
His inept handling of the situation made it worse.
Sein ungeschicktes Handling der Situation machte sie schlimmer.
C2 noun /ɪmˈbroʊlioʊ/

imbroglio

Verwicklungen
Meaning
An extremely confused, complicated, or embarrassing situation.
Example
The political imbroglio lasted for months without resolution.
Die politischen Verwicklungen dauerten Monate ohne Lösung.
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 /ɪnˈædɪkwət/

inadequate

unzureichend
Meaning
Not sufficient or good enough.
Example
The funding was inadequate to complete the project.
Die Finanzierung war unzureichend, um das Projekt abzuschließen.
B2 adjective /ɪnˈdɪf.ər.ənt/

indifferent

gleichgültig
Meaning
having no particular interest or concern; not caring one way or another
Example
She was indifferent to the outcome of the match.
Sie war gleichgültig gegenüber dem Ausgang des Spiels.
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

interdisziplinär
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
Der interdisziplinäre Ansatz in der Bildung fördert Problemlösungsfähigkeiten.
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

unbequem; störend; problematisch
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
Der kaputte Aufzug machte es unbequem, den obersten Stock zu erreichen.
B1 verb /ɪmˈpɔːrt/

import

importieren
Meaning
to bring goods or services into a country from abroad; to transfer data
Example
The country imports oil from abroad.
Das Land importiert Öl aus dem Ausland.
C1 verb /ˈɪrɪˌɡeɪt/

irrigate

bewässern
Meaning
to supply water to land or crops; to wash out a wound with water
Example
Farmers irrigate their fields during dry seasons.
Bauern bewässern ihre Felder in der Trockenzeit.
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.
C1 adjective /ˌɪrɪˈprɛsəbl̩/

irrepressible

unaufhaltsam
Meaning
Impossible to control or restrain.
Example
She had an irrepressible urge to laugh during the speech.
Sie konnte ihre unaufhaltsame Lust zu lachen während der Rede nicht verbergen.
B2 adjective ˈaɪsəˌleɪtɪd

isolated

isoliert
Meaning
Alone or separated from others; having little or no contact with other people.
Example
Technological advancements often leave people isolated.
Technologische Fortschritte führen oft dazu, dass Menschen isoliert werden.
C1 adjective /ɪnˈæk.tɪv/

Inactive

inaktiv
Meaning
not active; not working; dormant; idle
Example
The volcano has been inactive for over a century.
Der Vulkan ist seit über einem Jahrhundert inaktiv.
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.
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.
B2 adjective ɪnˈdɪdʒɪnəs

indigenous

einheimisch
Meaning
Originating or occurring naturally in a particular place; native.
Example
Indigenous plants are well adapted to the local environment.
Einheimische Pflanzen sind gut an die lokale Umgebung angepasst.
B2 adjective, noun /ˌɪn.təlˈɛk.tʃu.əl/

intellectual

intellektuell
Meaning
Relating to the intellect; a person who engages in critical thinking and study.
Example
She enjoys intellectual discussions about philosophy.
Sie genießt intellektuelle Diskussionen über Philosophie.
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.
C1 verb /ɪnˈsɪnjueɪt/

insinuate

insinuieren
Meaning
To suggest or hint something indirectly and often unpleasantly.
Example
He insinuated that she had lied about her qualifications.
Er insinuierte, dass sie über ihre Qualifikationen gelogen hatte.
C1 noun /ɪnˈfɜː.mə.ti/

Infirmity

Schwäche; Krankheit; Gebrechlichkeit
Meaning
physical or mental weakness; a disease or ailment; frailty
Example
Despite his advanced age and various infirmities, he remained mentally sharp and alert.
Trotz seines fortgeschrittenen Alters und verschiedener Gebrechen blieb er geistig scharf und wachsam.
C1 adjective /ɪnˈdefɪnət/

Indefinite

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

iliad

Ilias
Meaning
An ancient Greek epic poem attributed to Homer, describing the events of the Trojan War.
Example
Students studied the Iliad to understand Greek mythology and heroism.
Die Studenten studierten die Ilias, um die griechische Mythologie und den Heroismus zu verstehen.
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.
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

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

induce

induzieren
Meaning
to cause or persuade someone to do something; to bring about a result
Example
The doctor induced sleep with a mild sedative.
Der Arzt induzierte den Schlaf mit einem leichten Beruhigungsmittel.
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 /ˌaɪ.diˈɒl.ə.dʒi/

ideology

Ideologie
Meaning
A system of ideas and ideals, especially one that forms the basis of economic or political theory and policy.
Example
Democracy is based on the ideology of freedom and equality.
Demokratie basiert auf der Ideologie von Freiheit und Gleichheit.
B1 noun /ɪnˈʃʊərəns/

insurance

Versicherung
Meaning
An arrangement by which a company provides compensation for loss, damage, or illness in return for a premium.
Example
He bought health insurance to cover medical expenses.
Er hat eine Krankenversicherung abgeschlossen, um medizinische Kosten abzudecken.
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 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

unverletzlich
Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
Die Verfassung garantiert jedem Bürger bestimmte unverletzliche Rechte.
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 noun /ˌɪnˈdɪsəplɪn/

indiscipline

Undiszipliniertheit
Meaning
lack of discipline or self-control; failure to obey rules or maintain order
Example
Indiscipline among the students disrupted the learning environment.
Die Undiszipliniertheit der Schüler störte die Lernumgebung.
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 verb /ɪnˈhæbɪt/

inhabit

bewohnen
Meaning
to live in; to occupy as a dwelling
Example
Many animals inhabit the forest.
Viele Tiere bewohnen den Wald.
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.
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.
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.
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 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.
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 /ɪmˈpɛn.ɪ.tənt/

impenitent

unbußfertig
Meaning
Not feeling regret or shame about one's actions.
Example
The criminal remained impenitent after the trial.
Der Kriminelle blieb unbußfertig nach dem Prozess.
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 /ˌɪnɪkˈsprɛsəbl/

inexpressible

unaussprechlich
Meaning
Too strong or extreme to be expressed in words.
Example
She felt inexpressible joy at the news of her success.
Sie fühlte unaussprechliche Freude, als sie von ihrem Erfolg erfuhr.
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 /ɪnˈtɜːrmənəbl/

interminable

unendlich
Meaning
Seemingly endless; having no apparent end.
Example
The meeting felt interminable and exhausting.
Das Treffen schien unendlich und ermüdend.
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.
B2 noun /ɪnˈsɪstəns/

insistence

Insistenz
Meaning
the act of demanding something firmly or repeatedly
Example
At his insistence, we stayed longer.
Auf seine Insistenz hin blieben wir länger.
C1 noun /ˌɪn.trəˈspek.ʃən/

introspection

Introspektion
Meaning
The examination or observation of one's own mental and emotional processes; self-reflection.
Example
Through introspection, she gained insight into her emotions.
Durch Introspektion gewann sie tiefere Einblicke in ihre Emotionen.
A1 noun /aɪˈdiː.ə/

Idea

Idee; Konzept; Vorschlag
Meaning
a thought or suggestion as to a possible course of action; a concept or mental impression
Example
She had a brilliant idea for solving the company's efficiency problem.
Sie hatte eine brillante Idee zur Lösung des Effizienzproblems des Unternehmens.
C1 noun /ˌɪnækˈtɪvɪti/

inactivity

Inaktivität
Meaning
the state of not being active physically or mentally; lack of action
Example
Prolonged inactivity can negatively affect both physical and mental health.
Längere Inaktivität kann die körperliche und geistige Gesundheit beeinträchtigen.
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.
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

vorstellbar
Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
Sie boten auf dem Festival jede erdenkliche Art von Essen an.
C1 adjective /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 noun ˌɪn.toʊˈneɪ.ʃən

intonation

Intonation
Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
Die richtige Intonation verbessert die Klarheit einer Rede.
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 adjective /ˌɪn.trəˈdʌk.tər.i/

introductory

einführend
Meaning
Serving as an introduction; preliminary or preparatory.
Example
The professor gave an introductory lecture on economics.
Der Professor hielt einen einführenden Vortrag über Wirtschaft.
C1 noun /ˌɪntərˈdʒɛkʃən/

interjection

Interjektion
Meaning
a word or phrase used to express sudden emotion or reaction, often standing alone
Example
Words like 'wow' and 'ouch' are common interjections in English.
Wörter wie 'wow' und 'au' sind häufige Interjektionen im Englischen.
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.
C2 noun /ɪˌluːmɪˈnɑːti/

illuminati

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

illimitable

unermesslich
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
Das Universum wird oft als unermesslich beschrieben.
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.
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.
C1 verb /ɪnˈdʌkt/

induct

jemanden formell in eine Position, Organisation oder ein Amt aufnehmen
Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
Sie wurde in die Ehrenvereinigung der Universität aufgenommen.
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 /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.
B2 noun ɪnˈsɛntɪvz

incentives

Anreize
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
Steueranreize werden verwendet, um Investitionen in erneuerbare Energien zu fördern.
A1 noun /aɪs/

Ice

Eis
Meaning
water that has frozen and become solid
Example
The ice in my drink melted quickly in the hot weather.
Das Eis in meinem Getränk schmolz schnell bei heißem Wetter.
B2 noun /ɪnˈtɒlərəns/

intolerance

intoleranz
Meaning
unwillingness to accept or endure beliefs, behaviors, or conditions different from one's own
Example
The leader was criticized for his intolerance toward other religions.
Der Führer wurde wegen seiner Intoleranz gegenüber anderen Religionen kritisiert.
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.
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 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.
C2 noun /ˌɪdiəˈsɪŋkrəsi/

idiosyncrasy

Idiosynkrasie
Meaning
A distinctive or peculiar characteristic, habit, or mannerism unique to an individual.
Example
One of her idiosyncrasies was humming while working.
Eine ihrer Idiosynkrasien war es, beim Arbeiten zu summen.
C1 noun /ɪnˈfɜːrnoʊ/

inferno

Brand
Meaning
a large, intense fire that is dangerously out of control
Example
The building turned into an inferno within minutes.
Das Gebäude verwandelte sich in ein Inferno innerhalb von Minuten.
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.
B2 adjective /ɪnˈsɛnsətɪv/

insensitive

gefühllos
Meaning
Showing or feeling no concern for others' feelings.
Example
His insensitive comment hurt her deeply.
Sein gefühlloser Kommentar hat sie tief verletzt.
C1 adjective /ɪmˈpæsɪv/

impassive

passiv
Meaning
Not showing or feeling emotion; expressionless.
Example
Despite the shocking news, she remained impassive.
Trotz der schockierenden Nachrichten blieb sie passiv.
C1 adjective /ɪnˈfɜːm/

infirm

schwach
Meaning
Weak, especially due to old age or illness.
Example
The infirm old man needed assistance to walk.
Der schwache alte Mann brauchte Hilfe, um zu gehen.
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.
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.
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.
B2 adjective /ˈɪnˌsaɪtfəl/

insightful

einsichtig
Meaning
Showing deep understanding or perceptiveness.
Example
The professor gave an insightful lecture on global economics.
Der Professor hielt einen aufschlussreichen Vortrag über die globale Wirtschaft.
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 /ɪnˈtræn.sɪ.dʒənt/

intransigent

unversöhnlich, stur, hartnäckig
Meaning
Unwilling or refusing to change one's views or to agree about something.
Example
His intransigent stance delayed the agreement.
Seine intransigente Haltung verzögerte die Vereinbarung.
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.
C1 adjective /ɪmˈpjʊər/

Impure

unrein
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
Das unreine Wasser verursachte Gesundheitsprobleme im Dorf.
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.
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 noun /ˈɪnflʌks/

influx

Zufluss
Meaning
A large arrival or flow of people or things.
Example
The city experienced an influx of tourists during the festival.
Die Stadt erlebte einen Zufluss von Touristen während des Festivals.
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.
B1 noun /ɪnˈstrʌktər/

instructor

instruktor
Meaning
A person who teaches a subject or skill.
Example
The driving instructor was very patient with new learners.
Der Fahrlehrer war sehr geduldig mit den neuen Schülern.
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.
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.
B2 verb /ɪnˈtɛnsɪfaɪ/

intensify

intensivieren
Meaning
To make something stronger, more extreme, or more forceful.
Example
The storm is expected to intensify overnight.
Der Sturm wird voraussichtlich über Nacht intensiver werden.
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

bewässerung
Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
Bewässerungssysteme verbessern die Erträge in trockenen Regionen.
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

Unerfahrenheit
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
Seine Unerfahrenheit im Umgang mit Verhandlungen war offensichtlich.
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

verständlich
Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
Durch den Lärm war ihre Rede kaum verständlich.
A2 noun /ˈɪm.ɪdʒ/

Image

Bild; Darstellung; Abbild; Vorstellung
Meaning
a representation of the external form of a person or thing in art; a mental picture or impression
Example
The company worked hard to improve its public image after the scandal.
Das Unternehmen arbeitete hart daran, sein öffentliches Bild nach dem Skandal zu verbessern.
C2 adjective /ˌɪnˌɑːpərˈtuːn/

inopportune

ungünstiger Moment
Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
Sein Anruf kam im ungünstigsten Moment.
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.