inconceivable
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C1 adjective /ˌɪnkənˈsiːvəbl̩/

inconceivable

inconcevable
Meaning
Impossible to imagine or believe; beyond comprehension.
Example
It seemed inconceivable that she could finish the marathon after such little training.
Il semblait inconcevable qu'elle puisse finir le marathon après si peu d'entraînement.
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 noun ˈɪn.də.stri

industry

industrie
Meaning
Economic activity concerned with the processing of raw materials and manufacture of goods in factories.
Example
The industry focuses on luxury experiences.
L'industrie se concentre sur des expériences de luxe.
C2 adjective /ɪnˈtɛmpərət/

intemperate

intempérant
Meaning
Lacking self-control; immoderate, especially in indulgence.
Example
The politician's intemperate remarks caused controversy.
Les remarques intempérantes du politicien ont causé la controverse.
C2 noun /ɪnˈɛrənsi/

inerrancy

inerrance
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
Certains groupes religieux affirment fermement l'inerrance de leurs textes sacrés.
B1 adjective /ɪnˈfɔːrməl/

Informal

informel; détendu; décontracté
Meaning
relaxed and friendly; not official or ceremonial; casual
Example
The meeting was informal and relaxed.
La réunion était informelle et détendue.
C1 adjective /ɪnˈdʒʊəriəs/

injurious

nuisible
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
Fumer est nuisible à la santé.
C1 adjective ɪˈneɪt

Innate

inné ou naturel
Meaning
Existing from birth or natural
Example
She has an innate talent for music.
Elle a un talent inné pour la musique.
C2 noun /ɪmˈpjuːɪsəns/

impuissance

impuissance
Meaning
inability to take effective action; helplessness
Example
The government’s impuissance in the face of crisis frustrated the people.
L’impuissance du gouvernement face à la crise a frustré la population.
C1 verb /ˈɪnfɪltreɪt/

infiltrate

infiltrer
Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
Les espions ont réussi à infiltrer la base ennemie.
C1 verb /ɪmˈpɛl/

impel

inciter
Meaning
to drive, force, or urge someone to do something
Example
Her curiosity impelled her to open the mysterious box.
Sa curiosité l'a poussée à ouvrir la boîte mystérieuse.
C2 adjective /ɪnˈɛstɪməbl/

inestimable

inestimable
Meaning
Too great or valuable to be measured or estimated.
Example
Her contribution to the project was of inestimable value.
Sa contribution au projet avait une valeur inestimable.
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.
C2 adjective /ɪnˈsɛndiˌɛri/

incendiary

incendiaire / provocateur
Meaning
designed to cause fires or stir up conflict
Example
The politician’s incendiary remarks angered the crowd.
Les remarques incendiaires du politicien ont mis en colère la foule.
C2 noun /ˈaɪsinəs/

iciness

froid
Meaning
The state of being cold in manner or temperature.
Example
There was a distinct iciness in his voice.
Il y avait une froideur distincte dans sa voix.
C1 adjective /ɪnˈflɛksəbl/

inflexible

inflexible
Meaning
Not able to bend or change; unwilling to change ideas or behavior.
Example
His inflexible attitude made negotiations difficult.
Son attitude inflexible rendait les négociations difficiles.
C2 adjective /ɪnˈfɜːrnəl/

infernal

infernal
Meaning
relating to hell; extremely troublesome or annoying
Example
The workers complained about the infernal noise from the construction site.
Les travailleurs se sont plaints du bruit infernal provenant du site de construction.
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.
Elle m'a donné toutes les informations nécessaires pour la réunion.
B1 noun /ˈɪnpʊt/

input

entrée, information fournie
Meaning
information, advice, or data that is put into a system, device, or process
Example
The manager asked for everyone's input on the new project.
Le manager a demandé l'avis de tout le monde sur le nouveau projet.
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.
C1 noun /ˈɪnkwest/

inquest

enquête
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
L'enquête a révélé la cause de l'accident.
B2 noun /ˌɪnstəˈbɪləti/

instability

instabilité
Meaning
lack of stability or balance; tendency to change, fail, or collapse easily
Example
Political instability has slowed economic growth in the region.
L’instabilité politique a ralenti la croissance économique de la région.
C2 adjective /ɪmˈplaɪəbl/

impliable

impliquable
Meaning
Capable of being implied or suggested.
Example
The meaning of the statement is not directly clear but is impliable from the context.
Le sens de la déclaration n'est pas directement clair, mais il est impliquable à partir du contexte.
C1 adjective ɪˈluː.sər.i

illusory

illusoire
Meaning
Based on illusion; not real although seeming to be.
Example
His sense of security was entirely illusory.
Son sentiment de sécurité était entièrement illusoire.
C1 adjective /ˌɪnɔːrˈɡænɪk/

inorganic

inorganique
Meaning
relating to substances that are not derived from living organisms; lacking organic structure or growth
Example
Inorganic compounds are commonly studied in chemistry labs.
Les composés inorganiques sont courants en chimie.
C2 adjective /ɪmˌpɜːrˈsweɪdəbl/

impersuadable

impossible à persuader
Meaning
not able to be convinced or persuaded
Example
She remained impersuadable despite all our arguments.
Elle est restée impossible à persuader malgré tous nos arguments.
B2 verb /ɪnˈtɜːrprət/

interpret

interpréter / traduire
Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
Elle a dû interpréter le discours pour les invités étrangers.
C1 noun ɪnˌten.sɪ.fɪˈkeɪ.ʃən

intensification

intensification
Meaning
The process of becoming or making something more intense or extreme.
Example
The intensification of climate change requires urgent action.
L'intensification du changement climatique nécessite une action urgente.
C1 verb /ɪmˈpiːd/

impede

entraver
Meaning
To obstruct or hinder the progress or development of something.
Example
Lack of funds can impede business growth.
Le manque de fonds peut entraver la croissance des entreprises.
C1 adjective /ɪˈnɔːrdənət/

inordinate

excessif
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
Elle a passé un temps excessif sur son téléphone.
C2 verb /ɪnˈtɜːr/

inter

enterrer
Meaning
To bury a dead body in the ground.
Example
They decided to inter the soldier with full honors.
Ils ont décidé d'enterrer le soldat avec tous les honneurs.
C1 adjective /ɪnˈedəbəl/

Inedible

incomestible
Meaning
not suitable or safe for eating; not edible
Example
The mushrooms were poisonous and completely inedible.
Les champignons étaient venimeux et complètement inédibles.
C2 adjective /ɪˈmɒdərət/

immoderate

immodéré
Meaning
excessive; beyond reasonable limits
Example
He has an immoderate love for sweets.
Il a un amour immodéré pour les bonbons.
C1 noun ˌɪnsjʊˈleɪʃən

insulation

isolation
Meaning
Material used to prevent heat, sound, or electricity from being transmitted from one area to another.
Example
Insulation of food storage areas can prevent pests from entering.
L'isolation des zones de stockage des aliments peut empêcher les nuisibles d'entrer.
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.
L'inflation érode le pouvoir d'achat des consommateurs.
C1 adjective /ˌɪndɪˈskraɪbəbəl/

Indescribable

indescriptible
Meaning
impossible to describe or express in words; beyond description
Example
The beauty of the sunset was indescribable.
La beauté du coucher de soleil était indescriptible.
C2 verb /ˈɪndjʊˌreɪt/

indurate

endurcir
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
Des années de difficultés ont induré son esprit.
C1 adjective /ɪmˈpɛn.ɪ.trə.bəl/

impenetrable

impénétrable
Meaning
Impossible to pass through or enter; impossible to understand.
Example
The dense forest was nearly impenetrable.
La forêt dense était presque impénétrable.
A2 adjective, noun /ɪˈtæliən/

italian

bonheur
Meaning
relating to Italy, its people, or its language; a person from Italy
Example
She loves Italian food.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
C2 adjective /ˌɪrɪˈprəʊtʃəbl̩/

irreproachable

irréprochable
Meaning
Beyond criticism; faultless.
Example
The judge was known for his irreproachable integrity.
Le juge était connu pour son intégrité irréprochable.
C1 adjective; noun /ɪˈmɔːrtl/

immortal

immortel
Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
Les légendes parlent d’êtres immortels.
C1 noun /ˌɪndɪˈdʒɛstʃən/

indigestion

indigestion
Meaning
Discomfort or pain in the stomach associated with difficulty in digesting food.
Example
He avoided spicy food because it often gave him indigestion.
Il evitait les aliments epices car cela lui donnait souvent une indigestion.
B2 verb /ɪnˈkwaɪər/

inquire

demander
Meaning
to ask; to investigate
Example
She inquired about the job opening.
Elle a demandé des informations sur l'offre d'emploi.
A1 noun /aɪˈdiː.ə/

Idea

idée; concept; suggestion
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.
Elle avait une idée brillante pour résoudre le problème d'efficacité de l'entreprise.
C1 adjective /ɪˈrɛvəkəbl/

irrevocable

irrévocable
Meaning
Not able to be revoked, changed, or undone.
Example
She made an irrevocable decision to leave the company.
Elle a pris une décision irrévocable de quitter l'entreprise.
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.
De nombreuses théories du complot impliquent les Illuminati comme un groupe secret contrôlant le monde.
C1 noun /ˈɪn.fən.tri/

Infantry

infanterie
Meaning
soldiers marching or fighting on foot; foot soldiers collectively
Example
The infantry advanced across the battlefield on foot.
L'infanterie a avancé à travers le champ de bataille à pied.
C2 noun /ɪnˈsɪpiəns/

incipience

début
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
Le projet en était encore à ses débuts lorsque le financement a été approuvé.
C1 verb /ɪnˈkrɪmɪˌneɪt/

incriminate

incriminer
Meaning
to make someone appear guilty of a crime or wrongdoing
Example
The new evidence could incriminate the suspect in the robbery case.
La nouvelle preuve pourrait incriminer le suspect dans l'affaire de vol.
C1 noun /ɪnˈkɜːrʒən/

incursion

incursion
Meaning
A sudden attack or invasion into a place or territory.
Example
The army repelled the enemy incursion at the border.
L'armée a repoussé l'incursion ennemie à la frontière.
C2 noun /ˈaɪ.kɒn/

ikon

image religieuse ou symbole
Meaning
A religious image or symbol, especially in the Eastern Orthodox Church.
Example
The church displayed a beautifully painted ikon of the Virgin Mary.
L'église a exposé un ikon magnifiquement peint de la Vierge Marie.
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.
B1 noun ɪnˈtel.ɪ.dʒəns

intelligence

intelligence
Meaning
The ability to learn, understand, and think in a logical way about things
Example
Intelligence is key in AI development.
L'intelligence est la clé du développement de l'IA.
C1 adjective /ɪnˈveə.ri.ə.bəl/

Invariable

invariable; constant; toujours le même
Meaning
never changing; constant; always the same
Example
His invariable routine includes morning exercise and coffee.
Sa routine invariable comprend des exercices matinaux et du café.
B1 noun /ˌɪntərˈækʃən/

interaction

interaction mutuelle
Meaning
The process of people or things acting upon or influencing each other.
Example
The teacher encouraged more interaction between students.
L'enseignant a encouragé plus d'interaction entre les élèves.
C2 adjective/noun /ɪnˈkɑːrnədiːn/

incarnadine

rouge incarnat
Meaning
a bright crimson or pinkish-red color
Example
The sky turned incarnadine at sunset.
Le ciel est devenu rouge incarnat au coucher du soleil.
A1 pronoun /aɪ/

i

je
Meaning
used by a speaker to refer to himself or herself
Example
I am learning English every day.
Je suis en train d'apprendre l'anglais tous les jours.
C1 noun /ˌɪnsəˈfɪʃənsi/

insufficiency

insuffisance
Meaning
The state of not being enough or not being adequate.
Example
The project failed due to the insufficiency of funds.
Le projet a échoué en raison de l'insuffisance des fonds.
B1 noun /ɪmˈpruːvmənt/

improvement

amélioration
Meaning
the act of making something better
Example
There has been a significant improvement in his health.
Il y a eu une amélioration significative de sa santé.
C1 adjective ˈɪn.tər.ɪm

interim

intérimaire
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
Les gouvernements intérimaires gèrent les phases de transition.
C1 adjective /ˌɪn.ɪˈfɛk.tʃu.əl/

ineffectual

inefficace
Meaning
Not producing any or the desired effect; lacking the ability or qualities to achieve a purpose.
Example
The manager’s ineffectual leadership caused the team to lose motivation.
Le leadership inefficace du manager a causé la perte de motivation de l'équipe.
B2 adjective /ɪmˈpɜːrfɪkt/

imperfect

imparfait
Meaning
Not perfect; having faults or flaws.
Example
The painting was beautiful despite being imperfect.
La peinture était belle malgré qu'elle fût imparfaite.
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 adjective /ɪmˈprɒmp.tjuː/

impromptu

imprévu
Meaning
Done without being planned, organized, or rehearsed; spontaneous.
Example
He gave an impromptu speech at the event.
Il a fait un discours improvisé lors de l'événement.
C1 noun ˌɪndɪˈspensəbl səˈpɔːrt

indispensable support

soutien indispensable
Meaning
Essential assistance that cannot be done without; absolutely necessary help.
Example
Volunteers provide indispensable support to communities.
Les bénévoles apportent un soutien indispensable aux communautés.
B2 adjective /ɪnˈvɪz.ə.bəl/

Invisible

invisible
Meaning
unable to be seen; not visible to the eye
Example
The bacteria are invisible without a microscope.
Les bactéries sont invisibles sans un microscope.
A2 noun /ɪmˈpɔːtəns/

importance

importance
Meaning
The quality or state of being important; consequence or significance.
Example
The importance of time management cannot be overstated.
L'importance de la gestion du temps ne peut être surestimée.
C2 verb /ɪnˈɡrɑːft/

ingraft

implanter
Meaning
To implant or fix deeply, often used in the sense of grafting an idea or quality.
Example
The teacher tried to ingraft good manners in the students.
Le professeur a essayé d'implanter de bonnes manières chez les étudiants.
C1 adjective /ɪmˈplɔːzəbl/

implausible

implausible
Meaning
Not seeming reasonable or probable; unlikely to be true.
Example
The story she told was so implausible that no one believed her.
L'histoire qu'elle a racontée était tellement implausible que personne ne l'a cru.
C1 noun /ɪnˈdem.nə.ti/

Indemnity

indemnité
Meaning
security or protection against a loss or other financial burden; compensation for damage or loss
Example
The insurance company provided full indemnity for the damages caused by the flood.
La compagnie d'assurance a fourni une indemnité complète pour les dommages causés par l'inondation.
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

intermédiaire
Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
Elle suit un cours de français de niveau intermédiaire.
C2 adverb /ˈaɪsɪli/

icily

glacialement
Meaning
In a very cold, unfriendly, or hostile manner.
Example
She replied icily to his question.
Elle a répondu glaciellement à sa question.
C2 adjective /ɪmˈpælpəbəl/

impalpable

intangible
Meaning
unable to be felt by touch; difficult to grasp or understand
Example
There was an impalpable sense of fear in the room.
Il y avait une sensation intangible de peur dans la pièce.
C1 adjective /ˌɪrɪˈspɛktɪv/

Irrespective

indifférent; sans tenir compte
Meaning
without taking something into account; regardless of
Example
All students will be treated equally, irrespective of their background.
Tous les étudiants seront traités de manière égale, indépendamment de leurs antécédents.
C1 verb /ˈɪmprəvaɪz/

improvise

improviser
Meaning
To create or perform something spontaneously without preparation.
Example
The actor had to improvise his lines when he forgot the script.
L'acteur a dû improviser ses répliques lorsqu'il a oublié le script.
C2 verb /ɪnˈdɒktrɪˌneɪt/

indoctrinate

endoctriner
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.
Le régime a tenté d'endoctriner la jeunesse avec de la propagande.
C2 adjective /ɪnˈseɪʃiət/

insatiate

insatiable
Meaning
impossible to satisfy; always wanting more
Example
He had an insatiate desire for power.
Il avait un désir insatiable de pouvoir.
C2 adjective /ˌɪmpəˈmɪsəbl/

impermissible

interdit
Meaning
Not permitted or allowed.
Example
Such behavior is impermissible in the workplace.
Un tel comportement est interdit sur le lieu de travail.
B2 noun, verb /ˌɪnkənˈviːniəns/

inconvenience

désagrément
Meaning
trouble or difficulty caused to someone; to cause trouble or difficulty to someone
Example
We apologize for any inconvenience caused by the delay.
Nous nous excusons pour tout désagrément causé par le retard.
B2 verb aɪˈdɛntɪfaɪd

identified

identifié
Meaning
To recognize or establish who or what someone or something is.
Example
The root causes of the issue need to be identified.
Les causes profondes du problème doivent être identifiées.
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.
C1 verb ɪˈnɔː.ɡjə.reɪ.tɪd

inaugurated

inauguré
Meaning
Begin or introduce (a system, policy, or period) formally.
Example
The organization was inaugurated officially.
L'organisation a été inaugurée officiellement.
B2 adjective /ɪˈmætʃʊr/

Immature

immature; pas totalement développé; enfantin
Meaning
not fully developed; lacking emotional or intellectual development; childish
Example
His immature behavior during the meeting disappointed everyone.
Son comportement immature pendant la réunion a déçu tout le monde.
B2 adjective /ɪnˈstrʌkʃənəl/

instructional

pédagogique
Meaning
providing knowledge or information; intended to teach
Example
The website offers many instructional videos for beginners.
Le site Web propose de nombreuses vidéos pédagogiques pour les débutants.
C2 noun /ˌɪntərpəˈzɪʃən/

interposition

intervention
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.
L'intervention du manager a empêché une dispute animée de s'intensifier.
B2 adjective ˈɪn.tɪ.ɡrəl

integral

intégral
Meaning
Necessary to make a complete whole; essential or fundamental.
Example
Exercise is an integral part of a healthy lifestyle.
L'exercice est une partie intégrante d'un mode de vie sain.
C1 noun /ˌɪndɪɡˈneɪʃən/

indignation

indignation
Meaning
Strong displeasure or anger caused by something unjust, offensive, or insulting.
Example
Public indignation grew after the unfair verdict.
L'indignation publique a grandi après le verdict injuste.
C1 noun ɪnˈdɪdʒɪnəs trəˈdɪʃənz

Indigenous Traditions

Traditions indigènes
Meaning
Cultural practices, beliefs, and customs that have been passed down through generations among native peoples.
Example
Indigenous traditions in the Chittagong Hill Tracts are unique.
Les traditions indigènes dans les Chittagong Hill Tracts sont uniques.
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.
C2 verb /ɪnˈsteɪt/

instate

installer
Meaning
To set up in position, office, or authority.
Example
The board decided to instate her as the new director.
Le conseil a décidé de l'instaurer en tant que nouveau directeur.
C1 adjective /ɪnˈflæməˌtɔːri/

inflammatory

bonheur
Meaning
causing inflammation in the body; arousing anger, hostility, or strong emotion
Example
His inflammatory speech triggered protests across the city.
Elle ne pouvait pas cacher son bonheur lorsqu'elle a reçu le prix.
B1 verb /ɪnˈvɛnt/

invent

inventer
Meaning
to create or design something that has not existed before
Example
Thomas Edison invented the electric bulb.
Thomas Edison a inventé l'ampoule électrique.
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

impondérable
Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
Le résultat des élections dépend de nombreux facteurs impondérables.
C1 noun /ˌɪrɪˌspɒnsəˈbɪləti/

irresponsibility

irresponsabilité
Meaning
lack of responsibility or accountability; failure to act in a reliable or sensible way
Example
The accident was caused by his irresponsibility at work.
L'accident a été causé par son irresponsabilité au travail.
C1 adjective /ˈɪnsələnt/

insolent

insolent, arrogant
Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
L'étudiant insolent a refusé de suivre les instructions du professeur.
C1 noun /ɪnˈfɜː.mə.ti/

Infirmity

faiblesse; maladie; fragilité
Meaning
physical or mental weakness; a disease or ailment; frailty
Example
Despite his advanced age and various infirmities, he remained mentally sharp and alert.
Malgré son âge avancé et ses diverses infirmités, il est resté mentalement vif et alerte.
C1 adjective /ˌɪnsɪˈdɛntəl/

incidental

incidentel
Meaning
happening as a minor part or in connection with something else
Example
Incidental expenses like snacks and tips were included in the bill.
Les dépenses incidentelles comme les collations et les pourboires ont été incluses dans la facture.
C2 adjective /ˌɪnkænˈdɛsənt/

incandescent

incandescent
Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
La lampe incandescente a éclairé toute la salle.
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

isolement
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
Le patient a été mis en isolement pour empêcher la propagation de la maladie infectieuse.
C1 adjective /ˈɪnbɔːrn/

Inborn

inné; congénital; inhérent
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
Elle a un talent inné pour la musique.
C1 noun /ˈɪntrɪkəsi/

intricacy

complexité
Meaning
the quality of being very detailed or complicated
Example
The intricacy of the design impressed everyone.
La complexité du design a impressionné tout le monde.
C1 adjective /ɪˈrɛpərəbəl/

Irreparable

irréparable
Meaning
impossible to repair or fix; permanent damage that cannot be undone
Example
The accident caused irreparable damage to his spine.
L'accident a causé des dommages irréparables à sa colonne vertébrale.
C1 noun /ˌɪntərˈmɪʃən/

intermission

entracte
Meaning
A pause or break, especially during a performance or event.
Example
The play had a twenty-minute intermission.
La pièce a eu un entracte de vingt minutes.
C1 noun /ˌɪn.dɪˈsɪʒ.ən/

Indecision

indécision; hésitation; doute
Meaning
the inability to make decisions quickly; uncertainty about what to do
Example
Her indecision about which job offer to accept caused her to miss both opportunities.
Son indécision sur quelle offre d'emploi accepter l'a conduite à manquer les deux opportunités.
B2 noun ɪnˈtɛɡrɪti

integrity

intégrité
Meaning
The quality of being honest and having strong moral principles; moral uprightness.
Example
Teachers' integrity fosters a positive learning environment.
L'intégrité des enseignants favorise un environnement d'apprentissage positif.
C1 noun /ɪˈnɜː.ʃə/

Inertia

inertie; manque d'activité
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
L'inertie de l'équipe les a empêchés de s'adapter aux conditions du marché en évolution rapide.
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 noun /ˈɪntərfeɪs/

interface

interface
Meaning
a point where two systems, subjects, or organizations meet and interact
Example
The user interface is designed to be intuitive and user-friendly.
L'interface utilisateur est conçue pour être intuitive et facile à utiliser.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

de plus en plus
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
Les gens sont de plus en plus préoccupés par le changement climatique.
B2 noun /ˈaɪrəni/

irony

ironie
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
L'ironie de la situation était que le gagnant avait oublié son propre prix.
C1 adjective /ˌɪnɪkˈskjuːzəbl/

inexcusable

inexcusable
Meaning
Too bad to be justified or overlooked; unforgivable.
Example
His rude behavior was inexcusable.
Son comportement impoli était inexcusable.
C2 adjective /ˌɪrɪˈkɒnsɪləbl/

irreconcilable

irréconciliable
Meaning
impossible to make compatible or bring into harmony; unable to resolve differences
Example
The couple separated due to irreconcilable differences.
Le couple s'est séparé en raison de différences irréconciliables.
B2 verb /ɪnˈsɜːrt/

insert

insérer
Meaning
to put or place something into something else
Example
Please insert the key into the lock.
veuillez insérer la clé dans la serrure.
C2 adjective /ˌɪnfəˈlɪsɪtəs/

infelicitous

inopportun
Meaning
not suitable or well chosen; awkward or unfortunate
Example
His infelicitous remark ruined the atmosphere of the meeting.
Sa remarque inopportune a gâché l'ambiance de la réunion.
C1 noun /ɪnˈædɪkwəsi/

inadequacy

insuffisance
Meaning
lack of sufficient ability, quality, or strength; a feeling of not being good enough
Example
She struggled with feelings of inadequacy at work despite her strong qualifications.
Elle luttait contre un sentiment d’insuffisance au travail malgré ses solides qualifications.
C1 adjective /ɪnˈsɒlvənt/

insolvent

insolvable
Meaning
unable to pay debts owed
Example
The insolvent firm could not meet its financial obligations.
L'entreprise insolvable n'a pas pu remplir ses obligations financières.
C2 adjective /ˌɪməˈmɔːriəl/

immemorial

immémorial
Meaning
Extending back beyond memory or record; ancient.
Example
The tradition has been followed since time immemorial.
La tradition est suivie depuis des temps immémoriaux.
B2 adjective /ˈaɪsi/

Icy

gelé; extrêmement froid; hostile
Meaning
extremely cold; covered with ice; unfriendly or hostile
Example
The icy wind made everyone shiver.
Le vent glacé a fait trembler tout le monde.
A1 noun /aɪs/

Ice

glace
Meaning
water that has frozen and become solid
Example
The ice in my drink melted quickly in the hot weather.
La glace dans ma boisson a fondu rapidement par temps chaud.
C2 verb /ɪˈniː.bri.eɪt/

inebriate

enivrer
Meaning
to intoxicate; to make someone drunk
Example
The strong wine was enough to inebriate even the most experienced drinker.
Le vin fort était suffisant pour enivrer même le buveur le plus expérimenté.
C2 adjective /ˌɪndɪˈsɒljʊbl/

indissoluble

Indissoluble
Meaning
Unable to be destroyed, broken, or dissolved.
Example
Marriage was once considered an indissoluble bond.
Le mariage était autrefois considéré comme un lien indissoluble.