idler
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C2 noun /ˈaɪdlər/

idler

fainéant
Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
Il était connu comme un fainéant qui gâchait ses journées.
C1 noun /ɪnˈdɪf.ər.əns/

Indifference

indifférence; désintérêt; apathie
Meaning
lack of interest, concern, or sympathy; the state of not caring about something
Example
His indifference to his studies resulted in poor grades throughout the semester.
Son indifférence à ses études a conduit à de mauvaises notes tout au long du semestre.
C1 noun ɪnˈdʌldʒəns

indulgence

indulgence
Meaning
The practice of allowing oneself to enjoy the pleasure of something.
Example
His indulgence in junk food affected his health.
Son indulgence pour la malbouffe a nui à sa sante.
C1 noun /ɪnˈtruː.ʒən/

intrusion

intrusion non autorisée
Meaning
Unauthorized entry into a system or place without permission
Example
The company detected an intrusion in its server.
L'entreprise a détecté une intrusion dans son serveur.
B2 adjective /ɪsˈlɑːmɪk/

islamic

islamique
Meaning
relating to Islam, its followers, or its teachings
Example
The city has many Islamic cultural centers.
La ville possède de nombreux centres culturels islamiques.
C1 adjective /ˌɪnəˈfɛnsɪv/

inoffensive

inoffensif
Meaning
Not likely to offend or provoke; harmless.
Example
His inoffensive remarks kept the conversation friendly.
Ses remarques inoffensives ont maintenu la conversation amicale.
C1 adjective /ɪnˈsɪstənt/

insistent

insistant
Meaning
demanding something firmly and refusing to accept no
Example
The child was insistent on getting a new toy.
L'enfant était insistant pour obtenir un nouveau jouet.
C1 noun /ɪmˈpjʊərəti/

impurity

impureté
Meaning
the state of being unclean or contaminated; a substance that makes something impure
Example
The scientist removed every impurity from the water sample.
Le scientifique a éliminé chaque impureté de l’échantillon d’eau.
C1 adjective /ɪˈnuːmərəbəl/

Innumerable

innombrable; incalculable; infini
Meaning
too many to be counted; countless; infinite in number
Example
There are innumerable stars in the night sky that we cannot see with our naked eyes.
Il y a d'innombrables étoiles dans le ciel nocturne que nous ne pouvons pas voir à l'œil nu.
C1 noun /ɪmˈbæl.əns/

Imbalance

déséquilibre
Meaning
lack of proportion or relation between corresponding things; unequal distribution
Example
The doctor said the patient's dizziness was caused by an inner ear imbalance.
Le docteur a dit que les vertiges du patient étaient causés par un déséquilibre dans l'oreille interne.
C2 adjective /ˌɪn.trəˈsɛl.jʊ.lər/

intracellular

à l'intérieur de la cellule
Meaning
Located or occurring within a cell.
Example
The drug works by targeting intracellular bacteria.
Le médicament agit en ciblant les bactéries intracellulaires.
B2 adjective /ɪmˈper.ə.tɪv/

imperative

impératif
Meaning
Of vital importance; crucial; giving or expressing a command.
Example
It is imperative to address the climate crisis immediately.
Il est impératif de traiter immédiatement la crise climatique.
B2 adjective /ˌɪntəˈpɜːsənl/

interpersonal

interpersonnel
Meaning
Relating to relationships or communication between people.
Example
He has excellent interpersonal skills and gets along well with others.
Il a d'excellentes compétences interpersonnelles et s'entend bien avec les autres.
B1 noun /ɪmˈprɛʃən/

impression

impression, concept
Meaning
an idea, feeling, or opinion about something or someone
Example
The book gave me a good first impression.
Le livre m'a donné une bonne première impression.
C1 noun /ˌɪnˈdɪsəplɪn/

indiscipline

indiscipline
Meaning
lack of discipline or self-control; failure to obey rules or maintain order
Example
Indiscipline among the students disrupted the learning environment.
L’indiscipline parmi les étudiants a perturbé l’environnement d’apprentissage.
C2 adverb /ˌɪnsəʊˈmʌtʃ/

insomuch

tant
Meaning
to such an extent
Example
He was insomuch tired that he could hardly stand.
Il était tellement fatigué qu'il pouvait à peine se tenir debout.
B2 verb /ˈaɪ.sə.leɪt/

isolate

isoler
Meaning
To separate something or someone from others.
Example
Doctors tried to isolate the patient to prevent the spread of infection.
Les médecins ont essayé d'isoler le patient pour éviter la propagation de l'infection.
C2 verb /ɪˈluːmɪn/

illumine

illuminer
Meaning
to light up or make clear
Example
The rising sun illumined the mountain peaks.
Le soleil levant illumina les cimes des montagnes.
B1 verb ˈɪndɪkeɪts

indicates

indique
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.
La tendance croissante indique un besoin urgent d'action.
C2 noun /ˈɪntəˌkrɒpɪŋ/

intercropping

cultures intercalaires
Meaning
The agricultural practice of cultivating two or more crops simultaneously in the same field to maximize land use efficiency and improve soil health.
Example
Intercropping can help improve soil fertility and pest control.
Les cultures intercalaires peuvent aider à améliorer la fertilité du sol et à contrôler les ravageurs.
C1 noun /ˈɪn.tə.mə.si/

Intimacy

intimité; proximité
Meaning
close familiarity or friendship; closeness; a private cozy atmosphere
Example
The couple valued the emotional intimacy they shared more than material possessions.
Le couple a plus apprécié l'intimité émotionnelle qu'ils partageaient que les biens matériels.
A2 verb /ˌɪntrəˈduːs/

introduce

présenter
Meaning
to present someone; to bring in for the first time
Example
Let me introduce you to my friend.
Laisse-moi te présenter à mon ami.
C2 verb /ɪnˈveɪɡəl/

inveigle

manipuler
Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
Elle l'a dupé pour qu'il signe le contrat.
C1 adjective /ɪnˈvɛntɪv/

inventive

inventif
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.
L'inventeur était connu pour ses solutions inventives aux problèmes quotidiens.
A1 noun /ˈɪntənet/

internet

réseau mondial d'ordinateurs
Meaning
A global computer network providing a variety of information and communication facilities.
Example
The internet has revolutionized the way we access information.
Internet a révolutionné la façon dont nous accédons à l'information.
B2 adjective /aɪˈdentɪkəl/

Identical

identique; exactement pareil
Meaning
exactly the same; not different in any way
Example
The twins look completely identical to each other.
Les jumeaux se ressemblent complètement identiques.
C1 noun /ɪnˈsæn.ə.ti/

Insanity

folie; démence
Meaning
the state of being seriously mentally ill; extreme foolishness or irrationality
Example
The defense lawyer argued that his client was not guilty by reason of insanity.
L'avocat de la défense a soutenu que son client n'était pas coupable pour cause de folie.
B2 noun ˌɪn.stəˈleɪ.ʃən

installation

installation
Meaning
The action or process of installing someone or something, or of being installed.
Example
The installation of the submarine cable is almost complete.
L'installation du câble sous-marin est presque terminée.
C2 verb /ˈɪmprɪkeɪt/

imprecate

imprécation
Meaning
To utter a curse or invoke evil upon someone.
Example
The old woman imprecated her enemies with dark words.
La vieille femme a impréqué ses ennemis avec des mots sombres.
C1 adjective /ɪˈmjuː.tə.bəl/

immutable

inaltérable
Meaning
Unchangeable, permanent, or fixed
Example
The laws of physics are considered immutable.
Les lois de la physique sont considérées inaltérables.
B2 noun /ɪmˈpeɪʃəns/

impatience

impatience
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
Son impatience grandissait à mesure que la réunion s'éternisait.
C1 adjective /ˈɪnsjələr/

insular

étroit d'esprit, relatif à une île
Meaning
Narrow-minded, isolated, or relating to an island.
Example
The community was criticized for its insular attitudes toward outsiders.
La communauté a été critiquée pour ses attitudes insulaires envers les étrangers.
C1 verb /ɪnˈvɪɡ.ər.eɪt/

invigorate

revigorer
Meaning
To give strength or energy to someone or something.
Example
A morning walk can invigorate both body and mind.
Une promenade matinale peut revigorer le corps et l'esprit.
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

indéterminé
Meaning
Not exactly known, defined, or established; vague or uncertain.
Example
The project was delayed for an indeterminate amount of time.
Le projet a été retardé pour une période indéterminée.
B1 adjective /ɪnˈtɜːrnəl/

internal

interne
Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
L'entreprise effectue un audit interne ce mois-ci.
C2 adjective /ˈɪnˌbrɛd/

inbred

inné
Meaning
existing naturally in a person or animal; also related to reproduction within a limited community
Example
He has an inbred sense of loyalty.
Il a un sens inné de la loyauté.
B2 noun /ˈɪnˌteɪk/

intake

ingestion
Meaning
the process of taking something in, especially food or drink
Example
He monitored his daily intake of calories to maintain a healthy diet.
Il a surveillé son apport quotidien en calories pour maintenir un régime alimentaire sain.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

imputation
Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
Le politicien a nié l'imputation de corruption.
C2 verb /ɪnˈtɜːrpəˌleɪt/

interpolate

interpoler
Meaning
To insert something, often words, into a text or conversation; to estimate values between known data points.
Example
The editor interpolated a missing paragraph into the manuscript.
L'éditeur a interpolé un paragraphe manquant dans le manuscrit.
C1 noun /ɪmˈprɪzənmənt/

imprisonment

emprisonnement
Meaning
the act of putting someone in prison; the state of being confined as punishment
Example
He faced imprisonment for violating the court order.
Il a fait face à l'emprisonnement pour avoir violé l'ordre du tribunal.
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

insubordonné
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
L'employé insubordonné a refusé de suivre les instructions du gestionnaire.
C1 noun /ɪnˌkɑːsəˈreɪʃən/

incarceration

incarcération
Meaning
the state of being imprisoned or confined
Example
The criminal faced years of incarceration for his crimes.
Le criminel a purgé des années d'incarcération pour ses crimes.
C1 noun /ɪˌluːmɪˈneɪʃən/

illumination

éclairage
Meaning
the act of lighting something or making something clear
Example
The street was filled with bright illumination from the lamps.
La rue était éclairée par l'éclairage brillant des lampes.
C2 adjective /ˌɪlˈneɪ.tʃəd/

ill-natured

de mauvaise nature
Meaning
Having a bad or unpleasant character; unkind or malicious.
Example
He made an ill-natured remark about his colleague.
Il a fait une remarque de mauvaise nature à propos de son collègue.
C1 noun /ɪnˈsɜːrdʒəns/

insurgence

insurrection
Meaning
An act of rebellion or uprising against authority.
Example
The government struggled to contain the growing insurgence.
Le gouvernement a eu du mal à contenir l'insurrection croissante.
C2 noun /ˌɪntərˈlɒkjətər/

interlocutor

interlocuteur
Meaning
a person who takes part in a conversation or dialogue
Example
She was a skilled interlocutor during the debate.
Elle était une interlocutrice habile pendant le débat.
B2 noun /ˈaɪ.dəl/

Idol

idole; personne admirée
Meaning
an image or representation of a god used as an object of worship; a person who is greatly admired
Example
The singer became a teenage idol after her hit song topped the charts worldwide.
La chanteuse est devenue une idole adolescente après que sa chanson à succès ait atteint le sommet des classements mondiaux.
C1 noun /ˈɪnlɛt/

inlet

entrée
Meaning
A small arm of the sea, a lake, or a river; an opening or passage for entry.
Example
The boat entered a narrow inlet along the coast.
Le bateau est entré dans une entrée étroite le long de la côte.
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

irréversible
Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
Les dommages causés par le feu étaient irréversibles.
B2 adverb /ˌɪndəˈrɛktli/

indirectly

indirectement
Meaning
in a way that is not direct; through an intermediate means or influence
Example
The policy affected small businesses indirectly.
La politique a affecté indirectement les petites entreprises.
C2 verb /ˌɪntərˈlɒk/

interlock

emboîter
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.
Les engrenages s'emboîtent pour assurer un mouvement fluide de la machine.
B2 adjective /ɪˈreɡjələr/

irregular

irrégulier
Meaning
not even or consistent in shape, pattern, time, or behavior; not following normal rules
Example
His attendance at work has been irregular this month.
Sa présence au travail a été irrégulière ce mois-ci.
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

ingéniosité
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
Son ingéniosité a conduit à des innovations de rupture.
B2 noun /ˌɪn.dɪˈkeɪ.ʃən/

Indication

indication; signe
Meaning
a sign or piece of information that indicates something; a suggestion or hint
Example
The dark clouds were a clear indication that a storm was approaching the area.
Les nuages sombres étaient une indication claire qu'une tempête approchait de la région.
C1 noun /ɪnˈdaɪtmənt/

indictment

acte d'accusation
Meaning
a formal charge or accusation of a serious crime
Example
The indictment accused the company of multiple violations.
L'acte d'accusation a accusé l'entreprise de multiples violations.
C2 adjective /ɪˈnɪmɪkəl/

inimical

hostile / défavorable
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
La politique était défavorable à la croissance économique du pays.
C2 adjective /ˌɪnɪkˈsprɛsəbl/

inexpressible

inexprimable
Meaning
Too strong or extreme to be expressed in words.
Example
She felt inexpressible joy at the news of her success.
Elle ressentit une joie inexprimable en apprenant son succès.
C1 verb /ɪnˈskraɪb/

inscribe

graver
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
Ils ont gravé son nom sur le trophée.
C1 adjective /ɪˈmækjələt/

immaculate

immaculé
Meaning
perfectly clean, neat, or free from flaws
Example
Her room was immaculate, with everything in its place.
Sa chambre était immaculée, tout était à sa place.
C1 noun /ɪnˈtɛstɪn/

intestine

intestin
Meaning
The part of the digestive system where food is digested and absorbed, extending from the stomach to the anus.
Example
The doctor explained how nutrients are absorbed in the small intestine.
Le médecin a expliqué comment les nutriments sont absorbés dans l'intestin grêle.
C1 adjective /ˌɪndɪˈspjuːtəbəl/

Indisputable

indiscutable; incontestable; certain
Meaning
impossible to deny or argue against; undeniable; certain
Example
The evidence against him was indisputable.
Les preuves contre lui étaient indiscutables.
C1 adverb /ˈɪnwərdli/

inwardly

intérieurement
Meaning
In the mind or spirit; not outwardly visible.
Example
She smiled outwardly but inwardly she was worried.
Elle a souri extérieurement, mais intérieurement elle était inquiète.
C1 adjective /ɪnˈɔːdəbl/

inaudible

inaudible
Meaning
Unable to be heard.
Example
Her voice was almost inaudible over the noise.
Sa voix était presque inaudible par-dessus le bruit.
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

se faire bien voir
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.
Elle a essayé de s'ingratiser auprès de son patron en le complimentant souvent.
C1 verb /ɪmˈpɒvərɪʃ/

impoverish

appauvrir
Meaning
To make someone poor or reduce the quality or richness of something.
Example
The long war impoverished the entire nation.
La longue guerre a appauvri toute la nation.
C1 noun /ˌɪntərˈdʒɛkʃən/

interjection

interjection
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.
Des mots comme 'wow' et 'aïe' sont des interjections courantes en anglais.
A2 noun /ˈaɪ.lənd/

Island

île
Meaning
a piece of land completely surrounded by water
Example
We visited a beautiful island during our vacation.
Nous avons visité une belle île pendant nos vacances.
B2 noun /ɪmˈpɒlɪtnəs/

impoliteness

impolitesse
Meaning
lack of good manners or courtesy; rude behavior
Example
His impoliteness towards the guests shocked everyone.
Son impolitesse envers les invités a choqué tout le monde.
C2 noun /ˌɪmprəˈpraɪəti/

impropriety

impropriété
Meaning
Failure to observe standards of honesty or modesty; improper behavior.
Example
The politician was accused of financial impropriety.
Le politicien a été accusé d'impropriété financière.
B1 noun ɪˈnɪʃətɪvz

initiatives

initiatives
Meaning
Actions or strategies designed to resolve a difficulty or improve a situation; programs or projects.
Example
Community initiatives benefit underprivileged groups.
Les initiatives communautaires bénéficient aux groupes défavorisés.
A1 adjective /ˈɪntrəstɪŋ/ or /ˈɪntəˌrɛstɪŋ/

interesting

intéressant
Meaning
Arousing curiosity or attention; holding one’s interest.
Example
The documentary about space was very interesting.
Le documentaire sur l'espace était très intéressant.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

inexpérimenté
Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
La manipulation inexpérimentée de la machine a causé plusieurs erreurs.
B1 adjective /ɪˈliː.ɡəl/

illegal

illégal
Meaning
Not allowed by law; unlawful.
Example
It is illegal to drive without a valid license.
Il est illégal de conduire sans une licence valide.
C1 adjective /ɪnˈhɪbɪtɪd/

inhibited

inhibé
Meaning
Unable to act in a relaxed and natural way, especially due to self-consciousness or restraint.
Example
He was too inhibited to express his true feelings.
Il était trop inhibé pour exprimer ses vrais sentiments.
C2 noun /ɪˈnænɪti/

inanity

ineptie, absurdité
Meaning
a nonsensical remark or action; silliness; emptiness
Example
The speech was full of inanities that bored the audience.
Le discours était rempli d'inepties qui ennuyaient le public.
C1 adjective /ɪnˈkɒmpɪtənt/

incompetent

incompétent
Meaning
Lacking the necessary ability or skills to do something successfully.
Example
He was fired because he was incompetent at his job.
Il a été licencié parce qu'il était incompétent dans son travail.
C1 adjective ˌɪn.trəˈspek.tɪv

introspective

introspectif
Meaning
Characterized by or given to introspection; examining one's own thoughts and feelings.
Example
Writers tend to be highly introspective individuals.
Les écrivains ont tendance à être des individus très introspectifs.
C2 noun /ɪnˈtɜːrstɪs/

interstice

interstice
Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
La lumière s'est filtrée à travers les étroites interstices du mur.
A1 pronoun /ɪts/

its

son
Meaning
Belonging to or associated with a thing previously mentioned.
Example
The company changed its logo last year.
L'entreprise a changé son logo l'année dernière.
C1 adjective /ˈɪɡ.ni.əs/

igneous

igné
Meaning
Formed through the cooling and solidification of magma or lava.
Example
Granite is an igneous rock commonly used in construction.
Le granit est une roche ignée couramment utilisée dans la construction.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

à l'intérieur de l'institution
Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
Le collège organise des compétitions sportives intramuros chaque semestre.
C1 verb /ɪnˈtɒksɪkeɪt/

intoxicate

bonheur
Meaning
to make someone lose control of their faculties or behavior due to alcohol or drugs
Example
The strong drink quickly intoxicated him.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
C2 verb /ˌɪnkəˈpæsɪteɪt/

incapacitate

incapaciter
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.
La blessure grave a rendu le joueur incapable pour le reste de la saison.
B2 verb /ɪnˈʃʊər/

insure

assurer
Meaning
to provide insurance; to make certain
Example
I need to insure my new car.
J'ai besoin d'assurer ma nouvelle voiture.
C2 noun /ɪnˈsaɪzər/

incisor

incisive
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.
Le dentiste a remarqué que son incisif supérieur gauche était fissuré.
C1 adjective /ɪˈlɒdʒ.ɪ.kəl/

Illogical

Illogique
Meaning
not reasonable or sensible; lacking logic
Example
It would be illogical to go swimming in such cold weather.
Il serait illogique d'aller nager par un temps aussi froid.
C2 noun /ˌɪmbəˈsɪləti/

imbecility

imbécillité
Meaning
Extreme foolishness, stupidity, or weakness of mind.
Example
The plan was abandoned due to its sheer imbecility.
Le plan a été abandonné en raison de son imbecilité pure.
A2 adverb /ˌɪnˈdɔːrz/

indoors

à l’intérieur
Meaning
inside a building; within an enclosed space
Example
Because of the rain, everyone stayed indoors.
À cause de la pluie, tout le monde est resté à l’intérieur.
C2 adjective /ɪnˈsɪpɪd/

insipid

insipide
Meaning
lacking flavor, interest, or excitement; dull
Example
The soup was insipid and needed more seasoning.
La soupe était insipide et avait besoin de plus d'assaisonnement.
B2 noun ˈɪn.frəˌstrʌk.tʃər

infrastructure

infrastructure
Meaning
The basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
Example
Digital infrastructure is vital for future advancements.
L'infrastructure numérique est essentielle pour les progrès futurs.
C2 adjective /ˌɪntərˈlɒkjətəri/

interlocutory

provisoire
Meaning
Given during the course of a legal action, not final but temporary or provisional.
Example
The judge issued an interlocutory order to maintain the status quo until the hearing.
Le juge a émis une ordonnance provisoire pour maintenir le statu quo jusqu'à l'audience.
C2 noun /ˈɪn.fɪ.del/

Infidel

infidèle
Meaning
a person who does not believe in religion or whose religious beliefs differ from one's own
Example
In historical contexts, crusaders often referred to their enemies as infidels.
Dans des contextes historiques, les croisés se référaient souvent à leurs ennemis comme des infidèles.
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

isotherme
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
L'expérience a été réalisée dans des conditions isothermes.
C2 adjective /ɪnˈkoʊətɪv/

inchoative

inchoatif
Meaning
relating to the beginning of something; in an initial stage
Example
The poet used inchoative expressions to depict the dawn of creation.
Le poète a utilisé des expressions inchoatives pour décrire l'aube de la création.
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

imprécis
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
Son explication était trop imprécise pour être utile.
C1 noun /ɪnˈhɛrɪtər/

inheritor

héritier
Meaning
a person who receives money, property, or a title when someone dies
Example
She became the inheritor of her family's estate.
Elle est devenue l'héritière de la propriété de sa famille.
C2 noun /ˈɪnroʊd/

inroad

progrès
Meaning
An advance or significant progress, often at the expense of something else.
Example
The company made significant inroads into the mobile market.
L'entreprise a réalisé des progrès significatifs sur le marché mobile.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

incombustible
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
Ce matériau est incombustible et sûr pour la construction.
B2 adjective /ɪnˈtɛns/

intense

intense
Meaning
Of extreme force, degree, or strength.
Example
She felt intense pain after the accident.
Elle a ressenti une douleur intense après l'accident.
B2 adjective /ˌɪnɪˈfɪʃənt/

Inefficient

inefficace
Meaning
not achieving maximum productivity; wasteful of time or resources
Example
The old computer system was inefficient and wasted a lot of time.
Le vieux système informatique était inefficace et gaspillait beaucoup de temps.
C2 verb /ɪmˈpeɪl/

impale

empaler
Meaning
to pierce or fix something with a sharp object
Example
The knight was impaled by the enemy’s spear.
Le chevalier a été empalé par la lance de l'ennemi.
B1 noun ɪnˈven.ʃən

invention

invention
Meaning
The action of inventing something, typically a process or device.
Example
The invention revolutionized communication.
L'invention a révolutionné la communication.
C1 adjective /ˌɪlɪˈdʒɪtɪmət/

illegitimate

illégitime
Meaning
Not authorized by law, rules, or standards; not recognized as valid.
Example
The court ruled the contract to be illegitimate.
Le tribunal a jugé que le contrat était illégitime.
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.
L'histoire était pleine d'involution, ce qui la rendait difficile à suivre.
C2 adjective /ˈɪkθiɪk/

ichthyic

ichtyique
Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
La peinture de l'artiste avait une qualité ictyique.
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

irréductible
Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
La fraction 3/7 est irréductible.
B2 noun ɪnˈdʒʌstɪs

injustice

injustice
Meaning
Lack of fairness or justice; the practice of being unjust or unfair.
Example
The story portrays the injustices faced by the common people.
L'histoire dépeint les injustices subies par les gens ordinaires.
B2 noun, verb /ɪntʃ/

inch

pouce / se déplacer lentement
Meaning
A unit of length equal to 2.54 centimeters; or to move slowly and carefully in small amounts.
Example
She inched closer to the edge of the stage.
Elle s'est lentement rapprochée du bord de la scène.
C2 noun /ɪmˈpjuːnɪti/

impunity

impunité
Meaning
freedom from punishment or harmful consequences for an action
Example
The dictator ruled with impunity, ignoring international laws.
Le dictateur a régné en toute impunité, ignorant les lois internationales.
B2 verb /ɪnˈspekt/

inspect

inspecter
Meaning
to examine something carefully to check for problems or faults
Example
The engineer will inspect the building for structural damage.
L'ingénieur inspectera le bâtiment pour des dommages structurels.
B2 noun /ɪnˈsaɪdə/

insider

initié
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.
Il était un initié qui connaissait tous les secrets de l'entreprise.
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

intégré
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
Les systèmes intégrés optimisent l'efficacité.
C1 adjective /ɪnˈsʌf.ər.ə.bəl/

insufferable

insupportable
Meaning
Too extreme to bear; intolerable.
Example
The heat during the summer was insufferable.
La chaleur pendant l'été était insupportable.
A2 noun /ɪŋk/

Ink

encre
Meaning
a colored fluid used for writing, drawing, or printing; a dark liquid ejected by cuttlefish
Example
The old fountain pen leaked ink all over his white shirt during the meeting.
Le vieux stylo a perdu de l'encre sur sa chemise blanche pendant la réunion.
C1 adjective /ɪmˈpɜːmiəbl/

impermeable

imperméable
Meaning
Not allowing fluid or gas to pass through.
Example
The container is made of impermeable plastic.
Le conteneur est fabriqué en plastique imperméable.
C2 verb ˈɪn.kʌl.keɪt

inculcate

inculquer
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.
Les parents devraient inculquer de bonnes valeurs à leurs enfants.
C1 adjective /ˌɪnkəʊˈhɪərənt/

incoherent

incohérent
Meaning
Not clear or easy to understand; lacking logical connection.
Example
His explanation was so incoherent that nobody could follow it.
Son explication était tellement incohérente que personne ne pouvait la suivre.
C1 verb /ɪmˈpiːtʃ/

impeach

destituer
Meaning
To charge a public official with misconduct while in office.
Example
The parliament voted to impeach the president.
Le parlement a voté pour destituer le président.
B2 adjective /ɪnˈklaɪnd/

inclined

incliné
Meaning
having a tendency or disposition toward something
Example
He is inclined to help those in need.
Il est enclin à aider ceux qui sont dans le besoin.
C2 verb /ɪnˈsɪnəˌreɪt/

incinerate

incinérer
Meaning
to burn something completely until it is reduced to ashes
Example
The city decided to incinerate the medical waste for safety.
La ville a décidé d'incinérer les déchets médicaux pour des raisons de sécurité.
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

incompréhensible
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
Le cours du professeur était tellement rapide qu'il est devenu incompréhensible.