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C1 verb /ɪmˈpɑːrt/

impart

transmettre
Meaning
to make information known; to bestow or communicate
Example
The teacher imparted valuable knowledge to her students.
L'enseignant a imparté des connaissances précieuses à ses élèves.
C1 adjective /ɪˈluː.sɪv/

Illusive

illusoire; semblant d'exister mais irréel; trompeur
Meaning
deceptive; appearing to exist but not real; misleading
Example
The promise of easy money proved to be illusive and misleading.
La promesse d'argent facile s'est avérée illusoire et trompeuse.
C1 noun /ˌɪmpɔːrˈteɪʃən/

importation

importation
Meaning
The act of bringing goods or services into a country from abroad
Example
The importation of luxury goods is strictly regulated.
L'importation de produits de luxe est strictement régulée.
C1 adjective /ˌɪrɪˈprɛsəbl̩/

irrepressible

irrépressible
Meaning
Impossible to control or restrain.
Example
She had an irrepressible urge to laugh during the speech.
Elle ne pouvait cacher son irrépressible envie de rire pendant le discours.
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

indiscriminément
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
L'entreprise a licencié les employés indifféremment sans prendre en compte leur performance.
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 noun /ˌɪnækˈtɪvɪti/

inactivity

inactivité
Meaning
the state of not being active physically or mentally; lack of action
Example
Prolonged inactivity can negatively affect both physical and mental health.
Une inactivité prolongée peut nuire à la santé physique et mentale.
C1 verb /ɪnˈvoʊk/

invoke

invoquer
Meaning
to call upon a higher power, authority, or principle for help, support, or justification
Example
The lawyer invoked the constitution to defend his client.
L'avocat a invoqué la constitution pour défendre son client.
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 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 adjective /ɪnˈvɜːs/

Inverse

inverse; opposé
Meaning
opposite in order, nature, or effect; reversed
Example
There is an inverse relationship between price and demand.
Il existe une relation inverse entre le prix et la demande.
C1 adjective /ˈɜːrksəm/

irksome

énervant
Meaning
annoying or irritating
Example
Waiting in a long line is one of the most irksome tasks.
Attendre dans une longue file est l'une des tâches les plus énervantes.
C1 verb /ɪˈmɔːrtəlaɪz/

immortalize

immortaliser
Meaning
to preserve the memory of someone or something forever
Example
The statue was built to immortalize the hero’s sacrifice.
La statue a été construite pour immortaliser le sacrifice du héros.
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.
C1 adjective /ɪnˈfɜːm/

infirm

fragile
Meaning
Weak, especially due to old age or illness.
Example
The infirm old man needed assistance to walk.
L'homme âgé et fragile avait besoin d'aide pour marcher.
C1 noun /ˈɪn.tə.lekt/

intellect

intellect
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
Son intellect est admiré par tous ses collègues.
C1 adjective /ˌɪndɪˈvɪzəbl/

indivisible

indivisible
Meaning
Not able to be divided or separated.
Example
The country's unity was indivisible despite differences.
L'unité du pays était indivisible malgré les différences.
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

Idéalisme
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.
Son idéalisme juvénile l'a motivé à rejoindre divers mouvements de justice sociale.
C1 verb /ˈɪmplɪˌkeɪt/

implicate

impliquer
Meaning
To show someone’s involvement in a crime or wrongdoing.
Example
The evidence implicated several officials in the scandal.
Les preuves ont impliqué plusieurs responsables dans le scandale.
C1 adjective /ˌɪnədˈvɜːrtənt/

inadvertent

involontaire, non intentionnel
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
Son erreur involontaire a causé un retard dans le projet.
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 /ɪnˈvɪnsəbl/

invincible

invincible
Meaning
too powerful to be defeated or overcome
Example
The team seemed invincible after winning ten matches in a row.
L'équipe semblait invincible après avoir gagné dix matchs d'affilée.
C1 adjective /ɪmˈpjʊər/

Impure

impur
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
L'eau impure a causé des problèmes de santé dans le village.
C1 verb /ɪnˈsaɪt/

incite

inciter
Meaning
to provoke; to stir up
Example
His speech incited the crowd to violence.
Son discours a incité la foule à la violence.
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 /ˌaɪ.di.əˈlɒdʒ.ɪ.kəl/

ideological

idéologique
Meaning
Relating to or based on a system of ideas or beliefs.
Example
The two parties are divided by deep ideological differences.
Les deux partis sont divisés par de profondes divergences idéologiques.
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.
C1 verb ɪˈmɜːrs

immerse

plonger
Meaning
To involve oneself deeply in a particular activity or interest; to surround completely.
Example
Immerse yourself in the new language.
Plongez-vous dans la nouvelle langue.
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 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.
C1 adjective /ɪˈlɪsɪt/

illicit

illicite
Meaning
Forbidden by law, rules, or custom.
Example
The police shut down the illicit drug operation.
La police a fermé l'opération de drogue illicite.
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.
C1 noun /ˌɪntərˈmiːdiˌɛri/

intermediary

intermédiaire
Meaning
A person who acts as a link between people in order to try to bring about an agreement; a mediator.
Example
The diplomat served as an intermediary between the two conflicting nations.
Le diplomate a agi comme intermédiaire entre les deux nations en conflit.
C1 adjective /ˈɪndɪɡoʊ bluː/

Indigo-blue

bleu indigo
Meaning
a deep blue color with a purplish tinge
Example
The indigo-blue sky looked magnificent at twilight.
Le ciel bleu indigo semblait magnifique au crépuscule.
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

impossibilité
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
Finir le projet en un jour était une impossibilité.
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.
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 /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 /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 /ˈɪnˌmeɪt/

inmate

détenu
Meaning
a person confined to an institution such as a prison or hospital
Example
The prison has over a thousand inmates.
La prison a plus de mille détenus.
C1 noun /ˌɪnkjʊˈbeɪʃən/

incubation

le processus de maintenir des œufs, des cellules ou des organismes dans les conditions appropriées pour leur développement
Meaning
the process of keeping eggs, cells, or organisms in the right conditions for development
Example
The incubation of the eggs lasted for three weeks.
L'incubation des œufs a duré trois semaines.
C1 adjective /ˈɪrɪtəbl/

irritable

irritable
Meaning
easily annoyed or made angry
Example
She became irritable after working long hours without rest.
Elle est devenue irritable après avoir travaillé de longues heures sans repos.
C1 adjective /ɪnˈdʌstriəs/

industrious

travailleur
Meaning
Hardworking and diligent in one's duties.
Example
She is an industrious student who always completes her assignments on time.
Elle est une étudiante travailleuse qui termine toujours ses devoirs à temps.
C1 adjective /ˌɪnədˈvaɪzəbl/

inadvisable

déconseillé
Meaning
Not recommended; likely to have undesirable consequences.
Example
It is inadvisable to drive in such heavy rain.
Il est déconseillé de conduire sous une telle pluie forte.
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.
C1 verb /ˈɪrɪˌɡeɪt/

irrigate

arroser
Meaning
to supply water to land or crops; to wash out a wound with water
Example
Farmers irrigate their fields during dry seasons.
Les agriculteurs irriguent leurs champs pendant les saisons sèches.
C1 verb ɪmˈbjuː

Imbue

Mélanger une idée ou un sentiment profondément dans l'esprit de quelqu'un
Meaning
Mixing some idea or feeling deeply into someone's mind
Example
The teacher tried to imbue students with a love for learning.
L'enseignant a essayé d'inculquer aux élèves un amour de l'apprentissage.
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.
C1 verb /ˈɪnsjuleɪt/

insulate

isoler
Meaning
To protect something by covering it, especially to prevent heat, sound, or electricity from escaping or entering.
Example
The house was insulated to reduce heating costs.
La maison a été isolée pour réduire les coûts de chauffage.
C1 adjective /ˌɪntərˈtwaɪnd/

intertwined

bonheur
Meaning
closely connected or twisted together
Example
Their lives became deeply intertwined after the accident.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

incuber
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
La poule incubera les œufs jusqu'à ce qu'ils éclosent.
C1 verb /aɪˈdiː.ə.laɪz/

idealize

idéaliser
Meaning
To regard or represent something as perfect or better than it really is.
Example
Children often idealize their parents.
Les enfants idéalisent souvent leurs parents.
C1 adjective ˌɪn.təˈmɪt.ənt

intermittent

intermittent
Meaning
Happening irregularly, not continuously.
Example
The rain was intermittent throughout the day.
La pluie était intermittente toute la journée.
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.
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

interdisciplinaire
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
L'approche interdisciplinaire en éducation améliore les compétences en résolution de problèmes.
C1 adjective /ˌɪnkəmˈpætəbl/

incompatible

incompatible
Meaning
Not able to exist or work together without conflict.
Example
Their personalities were completely incompatible.
Leurs personnalités étaient complètement incompatibles.
C1 adjective /ˌɪn.dɪˈspen.sə.bəl/

indispensable

indispensable
Meaning
Absolutely necessary, essential
Example
Water is indispensable for human survival.
L'eau est indispensable à la survie humaine.
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.
C1 verb /ɪnˈkɑːrsəreɪt/

incarcerate

incarcérer
Meaning
to imprison or confine someone
Example
The authorities incarcerated the criminal after the trial.
Les autorités ont emprisonné le criminel après le procès.
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

intuitif
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
Le logiciel a un design intuitif qui le rend facile à utiliser.
C1 noun /ˈɪnkjʊˌbeɪtər/

incubator

incubateur
Meaning
a device or environment that provides suitable conditions for eggs, cells, or infants to develop
Example
The premature baby was placed in an incubator for care.
Le bébé prématuré a été placé dans un incubateur pour ses soins.
C1 verb /ˈaɪdəlaɪz/

idolize

idolâtrer
Meaning
To admire or worship someone excessively.
Example
Fans often idolize celebrities for their talent and lifestyle.
Les fans idolâtrent souvent les célébrités pour leur talent et leur mode de vie.
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.
C1 adjective /ɪmˈpɜːrtɪnənt/

impertinent

impertinent
Meaning
rude and showing a lack of respect
Example
It was impertinent of him to question the manager's decision.
C'était impertinent de sa part de remettre en question la décision du manager.
C1 verb /ɪˈnɔːɡjʊreɪt/

inaugurate

inaugurer
Meaning
To formally begin or introduce something, especially with a ceremony.
Example
The mayor will inaugurate the new bridge tomorrow.
Le maire inaugurera le nouveau pont demain.
C1 noun /ˈɪnflʌks/

influx

afflux
Meaning
A large arrival or flow of people or things.
Example
The city experienced an influx of tourists during the festival.
La ville a connu un afflux de touristes pendant le festival.
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.
C1 adjective ɪnɪɡˈzɔːstɪbəl

inexhaustible

inépuisable
Meaning
Unable to be used up or worn out; limitless.
Example
His inexhaustible energy allowed him to work tirelessly on his projects.
Son énergie inépuisable lui a permis de travailler sans relâche sur ses projets.
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

indéfiniment
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
Le projet a été reporté indéfiniment.
C1 adjective /ˌɪndɪˈfɛnsəbl̩/

indefensible

indéfendable
Meaning
not able to be protected or justified
Example
The minister’s remarks were considered indefensible by the public.
Les remarques du ministre ont été jugées indéfendables par le public.
C1 adjective /ˌɪndɪˈsaɪsɪv/

Indecisive

indécis
Meaning
unable to make decisions quickly; hesitant; wavering
Example
She was indecisive about which university to attend.
Elle était indécise quant à l'université qu'elle allait fréquenter.
C1 noun /ˌɪn.trəˈvɜːr.ʒən/

introversion

introversion
Meaning
The tendency to be inward-looking and shy, preferring solitary activities.
Example
Her introversion made it difficult for her to enjoy large parties.
Son introversion rendait difficile pour elle de profiter des grandes fêtes.
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 /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 verb ɪˈnɪʃɪeɪtɪd

initiated

initié
Meaning
Caused a process or action to begin; started something.
Example
The project was initiated to enhance marine biodiversity.
Le projet a été initié pour améliorer la biodiversité marine.
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

inexpérience
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
Son inexpérience dans la gestion des négociations était évidente.
C1 adjective ɪmˈpɛkəbl

impeccable

impeccable
Meaning
In accordance with the highest standards; faultless.
Example
His impeccable taste in fashion was admired by all his peers.
Son goût impeccable en mode était admiré par tous ses pairs.
C1 adjective /ɪnˈseɪʃəbl̩/

insatiable

insatiable
Meaning
impossible to satisfy; always wanting more
Example
Her insatiable curiosity drove her to read every book in the library.
Sa curiosité insatiable l'a poussée à lire tous les livres de la bibliothèque.
C1 noun /ˌɪntɪˈmeɪʃən/

intimation

insinuation
Meaning
A subtle or indirect hint or suggestion.
Example
She gave no intimation of her plans.
Elle n'a donné aucune insinuation de ses projets.
C1 adjective /ɪnˈtɜːrmənəbl/

interminable

interminable
Meaning
Seemingly endless; having no apparent end.
Example
The meeting felt interminable and exhausting.
La réunion semblait interminable et épuisante.
C1 noun ɪnˈsɒl.vən.si

insolvency

insolvabilité
Meaning
The state of being unable to pay debts owed; bankruptcy.
Example
The company declared insolvency after years of losses.
L'entreprise a déclaré la faillite après des années de pertes.
C1 verb /ɪmˈpɜːrsəneɪt/

impersonate

imiter
Meaning
to pretend to be another person in order to entertain or deceive
Example
He was arrested for trying to impersonate a police officer.
Il a été arrêté pour avoir tenté d'usurper l'identité d'un policier.
C1 noun /ˈɪrɪtənt/

irritant

substance irritante
Meaning
something that causes irritation or discomfort
Example
Dust is a common irritant for people with allergies.
La poussière est un irritant commun pour les personnes allergiques.
C1 adjective /ɪmˈpɑːrʃəl/

Impartial

impartial; neutre
Meaning
treating all sides fairly; unbiased; neutral
Example
A good judge must remain impartial throughout the trial.
Un bon juge doit rester impartial tout au long du procès.
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 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 /ˌɪntəˈsɛkt/

intersect

croiser
Meaning
to cross or pass through each other
Example
The two roads intersect at the city center.
Les deux routes se croisent au centre-ville.
C1 adjective /ˌɪnkənˈkluːsɪv/

inconclusive

inconclusif
Meaning
Not leading to a definite result or decision.
Example
The investigation remained inconclusive due to a lack of evidence.
L'enquête est restée inconclusive en raison d'un manque de preuves.
C1 noun ˌɪrɪˈvɜːrsəbl ˈdæmɪdʒ

irreversible damage

dommages irréversibles
Meaning
Harm or injury that cannot be undone or repaired.
Example
Climate change causes irreversible damage to ecosystems.
Le changement climatique cause des dommages irréversibles aux écosystèmes.
C1 noun ˌɪm.pʌlˈsɪv.ɪ.ti

impulsivity

impulsivité
Meaning
The tendency to act quickly and without thought or care; lack of self-control.
Example
His impulsivity led him to make reckless choices.
Son impulsivité l'a conduit à prendre des décisions imprudentes.
C1 noun /ˌɪnflɛksɪˈbɪlɪti/

inflexibility

inflexibilité
Meaning
the quality of being rigid or unwilling to change; lack of adaptability
Example
The inflexibility of the rules caused unnecessary delays.
L’inflexibilité des règles a causé des retards inutiles.
C1 noun ɪnˈsɛpʃən

inception

inception
Meaning
The establishment or starting point of an institution or activity.
Example
The inception of the company marked a new era in the industry.
L'inception de l'entreprise a marqué une nouvelle ère dans l'industrie.
C1 adjective /ˌɪnəˈtɛntɪv/

inattentive

inattentif
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
L'étudiant inattentif a manqué plusieurs consignes importantes.
C1 adjective /ɪˈrɛvərənt/

irreverent

irrévérencieux
Meaning
showing a lack of respect for people or things that are usually respected
Example
The comedian’s irreverent jokes offended some of the audience.
Les blagues irrévérencieuses du comédien ont offensé certains membres du public.
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.
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 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 noun ˌɪnˈsaɪtfʊlnɪs

insightfulness

perspicacité, capacité d'analyse
Meaning
The capacity to gain an accurate and deep intuitive understanding of a person or thing.
Example
His insightfulness helped solve the complex problem.
Sa perspicacité a aidé à résoudre le problème complexe.
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.
C1 noun /ɪˈmɜː.ʃən/

immersion

immersion
Meaning
Complete engagement in an environment or experience.
Example
Immersion in VR games makes users feel like they are inside the virtual world.
L'immersion dans les jeux en réalité virtuelle fait sentir aux utilisateurs qu'ils sont à l'intérieur du monde virtuel.
C1 adjective /ɪmˈpɜːrsənl/

impersonal

impersonnel
Meaning
not influenced by, showing, or involving personal feelings; lacking human warmth or emotion
Example
The letter was written in a very impersonal style.
La lettre a été écrite dans un style très impersonnel.
C1 adjective /ɪnˈdʌktɪv/

inductive

inductif
Meaning
characterized by the inference of general laws from particular instances; reasoning from specific cases to general principles
Example
The scientist used inductive reasoning to form a hypothesis.
Le scientifique a utilisé le raisonnement inductif pour formuler une hypothèse.
C1 adjective, noun /ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

invalid

invalide
Meaning
Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.
Example
The court declared the contract invalid.
Le tribunal a déclaré le contrat invalide.
C1 adjective /ɪnˈkwɪzɪtɪv/

inquisitive

inquisitif
Meaning
Curious or eager to learn and ask questions.
Example
The inquisitive child asked endless questions about the stars.
L'enfant inquisitif a posé d'innombrables questions sur les étoiles.
C1 noun /ˈɪmɪdʒəri/

imagery

imagerie
Meaning
visually descriptive or figurative language, especially in a literary work
Example
The poet's use of imagery brought the scene to life.
L'utilisation de l'imagerie par le poète a donné vie à la scène.
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.
C1 adjective /ɪˈmoʊbəl/

immobile

immobile
Meaning
unable to move or be moved
Example
After the accident, he was immobile for weeks.
Après l'accident, il est resté immobile pendant des semaines.
C1 adjective /ɪmˈpæʃənd/

impassioned

passionné
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
Elle a prononcé un discours passionné sur les droits de l'homme.
C1 adjective /ɪnˈdʌldʒənt/

indulgent

indulgent
Meaning
Having a tendency to be overly generous or lenient with someone.
Example
The indulgent mother allowed her child to stay up late.
La mère indulgente a permis à son enfant de rester éveillé tard.
C1 verb /ˌɪntərˈsɛpt/

intercept

Meaning
to stop, catch, or seize something on its way from one place to another
Example
The police intercepted the stolen car before it crossed the border.
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

intelligible
Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
Son discours était à peine intelligible à cause du bruit.
C1 adjective /ɪˈrɛfjʊtəbəl/

Irrefutable

irréfutable
Meaning
impossible to deny or disprove; undeniable
Example
The evidence against him was irrefutable.
Les preuves contre lui étaient irréfutables.
C1 noun /ɪmˌpɜː.sənˈeɪ.ʃən/

impersonation

usurpation d'identité
Meaning
The action of pretending to be another person for the purpose of entertainment or fraud.
Example
Online impersonation is a serious cybercrime.
L'usurpation d'identité en ligne est un crime informatique grave.
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

instantané
Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
Le changement de température a été presque instantané.
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.
C1 adjective /ɪmˈpɛndɪŋ/

impending

imminent
Meaning
about to happen soon, usually something unpleasant or threatening
Example
The villagers were worried about the impending flood.
Les villageois étaient inquiets de l'inondation imminente.
C1 adjective ˌɪn.təˈstel.ər

interstellar

entre les étoiles, interstellaire, cosmique
Meaning
Occurring or situated between stars.
Example
Scientists study interstellar travel possibilities.
Les scientifiques étudient les possibilités de voyages interstellaires.
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.
C1 adjective /aɪˈdɪlɪk/

idyllic

idyllique et magnifique
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
Ils ont apprécié des vacances idylliques au bord de la mer.
C1 noun /ˌɪməˈrælɪti/

immorality

immoralité
Meaning
the quality of being immoral; behavior that violates accepted moral standards
Example
The community condemned the immorality of the corrupt officials.
La communauté a condamné l’immoralité des fonctionnaires corrompus.
C1 adjective /ɪˈmuː.və.bəl/

immovable

immobile
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
Les barrières immobiles empêchent le changement.