inviolate
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C2 adjective /ɪnˈvaɪələt/

inviolate

inviolé
Meaning
free from violation, injury, or desecration; kept safe and untouched
Example
The ancient temple remained inviolate for centuries.
Le temple ancien est resté inviolé pendant des siècles.
C2 adjective /ˌɪnsəˈprɛsəbl/

insuppressible

irrépressible
Meaning
That cannot be suppressed or restrained.
Example
She had an insuppressible urge to laugh during the ceremony.
Elle avait une envie irrépressible de rire pendant la cérémonie.
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.
C2 noun /ɪmˈpɒs.tʃər/

Imposture

imposture; fraude; tromperie
Meaning
the practice of deceiving others by pretending to be someone else; fraudulent deception
Example
The elaborate imposture lasted for months before investigators uncovered the truth.
L'imposture élaborée a duré des mois avant que les enquêteurs ne découvrent la vérité.
B2 adjective /ˌɪnkənˈsɪstənt/

inconsistent

incohérent
Meaning
Not staying the same throughout; lacking harmony or regularity.
Example
His answers were inconsistent and confusing.
Ses réponses étaient incohérentes et confuses.
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.
B1 adjective /ɪˈmiːdiət/

immediate

immédiat
Meaning
happening or done without delay
Example
The doctor gave her immediate attention.
Le médecin lui a donné une attention immédiate.
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.
C2 adjective /ˌɪn.ɪˈlʌk.tə.bəl/

ineluctable

inéluctable
Meaning
Impossible to avoid or escape; inevitable.
Example
Death is an ineluctable part of human existence.
La mort est une partie inéluctable de l'existence humaine.
C1 verb /ɪnˈfrɪndʒ/

infringe

enfreindre
Meaning
To actively break the terms of a law, agreement, or right.
Example
Copying this software without permission will infringe copyright laws.
Copier ce logiciel sans permission enfreindra les lois sur le droit d'auteur.
B2 adjective ˌɪn.təˈræk.tɪv

interactive

interactif
Meaning
Allowing a two-way flow of information between it and a user, responding to the user's input.
Example
Interactive learning keeps students engaged in lessons.
L'apprentissage interactif maintient les étudiants engagés dans les leçons.
C2 noun /ˈaɪ.səˌbɑːr/

isobar

isobare
Meaning
A line on a weather map connecting points of equal atmospheric pressure.
Example
The meteorologist explained how isobars indicate wind speed and direction.
Le météorologue a expliqué comment les isobares indiquent la vitesse et la direction du vent.
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 /ɪmˈpɑːlɪtɪk/

impolitic

imprudent
Meaning
Unwise or imprudent; not showing good judgment.
Example
It would be impolitic to criticize them openly.
Il serait imprudent de les critiquer ouvertement.
C1 noun /ˌɪnklɪˈneɪʃən/

inclination

inclination
Meaning
A natural tendency or urge to act or feel in a particular way.
Example
She has an inclination towards helping others.
Elle a une inclination à aider les autres.
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.
B2 adverb /ɪmˈpeɪʃəntli/

impatiently

impatiemment
Meaning
in a manner showing annoyance or restlessness due to delay or waiting
Example
She tapped her fingers impatiently while waiting for the reply.
Elle tapotait des doigts impatiemment en attendant la réponse.
C2 noun /ˌɪməʊˈbɪləti/

immobility

immobilité
Meaning
The state of being unable to move.
Example
After the accident, she suffered from immobility in her legs.
Après l'accident, elle a souffert d'immobilité dans ses jambes.
B1 adjective /ˈɪnər/

inner

intérieur
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.
Elle a partagé ses pensées intérieures avec sa meilleure amie.
C2 adjective /ɪnˈtræn.sɪ.dʒənt/

intransigent

intransigeant, têtu, obstiné
Meaning
Unwilling or refusing to change one's views or to agree about something.
Example
His intransigent stance delayed the agreement.
Son attitude intransigeante a retardé l'accord.
C2 adjective /ɪnˈdɛkərəs/

indecorous

indécent
Meaning
Not in keeping with good taste and propriety; improper.
Example
His indecorous behavior shocked the audience.
Son comportement indécent a choqué l'audience.
C1 adjective /ˌɪnɪkˈsplɪkəbl/

inexplicable

inexpliquable
Meaning
Impossible to explain or understand.
Example
The sudden disappearance of the file was inexplicable.
La disparition soudaine du fichier était inexpliquable.
B1 noun ˌɪn.stɪˈtjuː.ʃən

institution

institution
Meaning
An organization founded and united for a specific purpose; an established law, practice, or custom.
Example
Institutions play a crucial role in governance.
Les institutions jouent un rôle crucial dans la gouvernance.
C1 adjective /ɪnˈdiːsənt/

indecent

indécent
Meaning
not conforming to accepted standards of behavior or morality; improper or offensive
Example
He was warned for making an indecent remark during the meeting.
Il a été averti pour une remarque indécente.
A2 adjective /ɪnˈtɛlɪdʒənt/

intelligent

intelligent
Meaning
Having or showing high mental capacity, quick to learn and understand.
Example
She is one of the most intelligent students in the class.
Elle est l'une des étudiantes les plus intelligentes de la classe.
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.
C1 adverb ɪnˈtrɪn.zɪ.kli

intrinsically

intrinsèquement
Meaning
In a way that is naturally or inherently part of something's essential nature.
Example
Some people are intrinsically motivated to learn.
Certaines personnes sont intrinsèquement motivées à apprendre.
C2 verb /ˌɪntərˈpoʊz/

interpose

interposer
Meaning
To place or insert between one thing and another; to intervene in a situation.
Example
He quickly interposed himself between the fighters to stop the quarrel.
Il s'est rapidement interposé entre les combattants pour arrêter la querelle.
C2 adjective /ɪnˈvɛtərət/

inveterate

invétéré
Meaning
having a long-established habit, activity, or interest that is unlikely to change
Example
He is an inveterate reader who spends hours in the library every day.
Il est un lecteur invétéré qui passe des heures à la bibliothèque chaque jour.
C2 noun /ˌɪnədˈvɜːrtəns/

inadvertence

inadvertance
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
L'erreur est survenue par pure inadvertance.
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.
C2 noun /ɪnˈtɒksɪkənt/

intoxicant

intoxiquant
Meaning
a substance, especially alcohol or a drug, that causes intoxication
Example
Alcohol is the most commonly used intoxicant in many cultures.
L'alcool est l'intoxicant le plus couramment utilisé dans de nombreuses cultures.
B2 verb /ɪnˈheɪl/

inhale

inhaler
Meaning
to breathe in; to draw air into the lungs
Example
Take a deep breath and inhale slowly.
Prenez une grande respiration et inhalez lentement.
B1 adverb /ɪnˈkrɛdɪbli/

incredibly

incroyablement
Meaning
to a great degree; extremely or unbelievably
Example
The view from the top of the mountain was incredibly beautiful.
La vue du sommet de la montagne était incroyablement belle.
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 noun ˌɪn.ɪˈfɪʃ.ən.si

inefficiency

inefficacité
Meaning
The state or quality of not achieving maximum productivity; failure to make the best use of time or resources.
Example
Government inefficiency leads to slow project completion.
L'inefficacité du gouvernement entraîne une réalisation lente du projet.
B2 noun /ɪnˈveɪʒən/

invasion

invasion
Meaning
An instance of invading a country, region, or personal space with armed force or unwelcome presence.
Example
The army prepared for the possibility of an invasion.
L'armée s'est préparée à la possibilité d'une invasion.
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.
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.
C1 noun /ˈɪŋ.krə.mənt/

Increment

augmentation
Meaning
an increase or addition, especially one of a series on a fixed scale; a regular increase in salary
Example
He received an annual increment of five percent in his salary this year.
Il a reçu une augmentation annuelle de cinq pour cent de son salaire cette année.
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.
A2 verb /ɪmˈpruːv/

improve

améliorer
Meaning
to make or become better; to enhance quality or condition
Example
Practice helps improve your skills.
La pratique aide à améliorer vos compétences.
C1 noun /ɪnˈsaɪtmənt/

incitement

incitation
Meaning
the action of provoking unlawful or violent behavior
Example
He was arrested for incitement to riot.
Il a été arrêté pour incitation à la violence.
B2 adjective /ɪnˈkluːsɪv/

inclusive

inclusif
Meaning
Including all the services, facilities, or items normally expected or required; not excluding any section of society or any party involved.
Example
Inclusive growth benefits all sections of society.
La croissance inclusive bénéficie à toutes les sections de la société.
B2 adjective ɪˈmɜː.sɪv

immersive

immersif
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
La réalité virtuelle crée un environnement d'apprentissage immersif.
C2 noun /ɪˌledʒ.əˈbɪl.ə.ti/

Illegibility

illégibilité
Meaning
the quality of being impossible or difficult to read; unclear writing or print
Example
The doctor's handwriting was famous for its illegibility among the pharmacy staff.
L'écriture du médecin était célèbre pour son illisibilité parmi le personnel de la pharmacie.
C2 verb /aɪˈtɪnəˌreɪt/

itinerate

itinerer
Meaning
To travel from place to place, usually for the purpose of work or preaching.
Example
The missionary itinerated throughout the region to spread the message.
Le missionnaire a voyagé dans toute la région pour répandre le message.
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 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 noun /ɪmˈpɒs.tər/

Impostor

imposteur; fraudeur
Meaning
a person who pretends to be someone else in order to deceive others; a fraud
Example
The impostor convinced everyone he was a doctor until his fake credentials were discovered.
L'imposteur a convaincu tout le monde qu'il était un médecin jusqu'à ce que ses faux diplômes soient découverts.
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.
C2 noun (compound/erroneous entry) /ɪnˈɛksərəbl ɑːrmi/

inexorableinexorablearmy

armée imparable
Meaning
This appears to be a corrupted or concatenated form; interpreted as 'inexorable army' — an unstoppable or relentless force.
Example
The rebels feared the inexorable army approaching their stronghold.
Les rebelles craignaient l'armée imparable qui approchait de leur bastion.
B1 adjective /aɪˈdiːəl/

ideal

idéal
Meaning
the best possible; perfect for a situation
Example
This place is ideal for a picnic.
Cet endroit est idéal pour un pique-nique.
B1 verb /ɪmˈpɔːrt/

import

importer
Meaning
to bring goods or services into a country from abroad; to transfer data
Example
The country imports oil from abroad.
Le pays importe du pétrole de l'étranger.
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.
B2 noun /ɪnˈtɛnsəti/

intensity

intensité
Meaning
The quality of being extreme, strong, or forceful in degree.
Example
The intensity of the storm frightened the villagers.
L'intensité de la tempête a effrayé les villageois.
B1 noun /ˈɪnkʌm/

income

revenu
Meaning
money received for work or through investments
Example
His monthly income is enough to support his family.
Ses revenus mensuels suffisent à soutenir sa famille.
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.
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

imagination; faculté créative
Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
L'imagination des enfants leur permet de transformer une boîte en carton en un vaisseau spatial ou un château.
C1 adjective /ɪˈnɜːrt/

inert

inactif
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
Le patient est resté inactif sur le lit.
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

analphabète; illettré; ignorants
Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
Le programme vise à aider les adultes illettrés à apprendre à lire et à écrire.
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.
C2 adjective /ɪˈræsɪbl/

irascible

irritable
Meaning
Easily angered; quick-tempered.
Example
His irascible nature often got him into trouble.
Sa nature irritable le mettait souvent dans des situations difficiles.
C1 adjective /ɪmˈpæsəbəl/

impassable

impraticable
Meaning
Impossible to travel along or over.
Example
The road became impassable after the heavy snowfall.
La route est devenue impraticable après la forte neige.
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

incongruente
Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
Sa tenue décontractée semblait incongruente lors du dîner formel.
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.
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.
C1 verb /ɪmˈplɔːr/

implore

implorer
Meaning
To beg someone earnestly or desperately to do something.
Example
She implored him to stay with her.
Elle lui implora de rester avec elle.
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.
C2 adjective /ɪˈnɪm.ɪ.tə.bəl/

inimitable

inimitable
Meaning
So good or unusual as to be impossible to copy; unique.
Example
His inimitable writing style made him a literary legend.
Son style d'écriture inimitable a fait de lui une légende littéraire.
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 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 /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 /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.
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.
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

brillance iridescente
Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
Les ailes du papillon brillaient d'une brillance iridescente.
C2 verb /ˈɪməleɪt/

immolate

immoler
Meaning
To kill or sacrifice, especially by burning.
Example
The protesters threatened to immolate themselves in front of the building.
Les manifestants ont menacé de s'immoler devant le bâtiment.
C1 noun /ˌɪnkənˈsɪstənsi/

inconsistency

incohérence
Meaning
The quality of being contradictory, irregular, or not staying the same.
Example
There is an inconsistency between his words and actions.
Il y a une incohérence entre ses paroles et ses actions.
C2 noun /aɪˈdɒlətri/

idolatry

idolâtrie
Meaning
The worship of idols or extreme admiration for someone or something.
Example
The priest condemned the idolatry practiced in the village.
Le prêtre a condamné l'idolâtrie pratiquée dans le village.
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 adjective /ɪnˈsɪdiəs/

insidious

insidieux
Meaning
Proceeding in a gradual, subtle way but with harmful effects.
Example
The insidious spread of misinformation can damage trust.
La propagation insidieuse de la désinformation peut nuire à la confiance.
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.
A2 adjective /ˈɪntrəstɪd/

interested

intéressé
Meaning
Showing curiosity or concern about something.
Example
She is very interested in learning new languages.
Elle est très intéressée par l'apprentissage de nouvelles langues.
C2 adjective /ɪnˈskruːtəbl̩/

inscrutable

bonheur
Meaning
impossible to understand or interpret
Example
His inscrutable expression made it hard to know what he was thinking.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
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.
C2 noun /ˈɪn.dɪ.dʒəns/

indigence

indigence
Meaning
a state of extreme poverty or destitution
Example
The charity was founded to help people living in indigence.
La charité a été fondée pour aider les personnes vivant dans l'indigence.
B1 adjective ɪnˈdʌs.tri.əl

industrial

industriel
Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
Les secteurs industriels stimulent les exportations.
B1 adjective /ɪnkəˈrɛkt/

incorrect

incorrect
Meaning
not correct or accurate
Example
The information you provided was incorrect.
L'information que vous avez fournie était incorrecte.
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 /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 adverb /ɪnˈvɜːrs.li/

Inversely

inversement; de manière opposée
Meaning
in a way that is opposite or contrary; in reverse order or manner
Example
The price of goods is inversely related to their availability in the market.
Le prix des biens est inversement lié à leur disponibilité sur le marché.
B1 noun /ɪnˈɡriːdiənt/

ingredient

ingrédient
Meaning
A component part or element of something, especially in a recipe.
Example
Flour is a key ingredient in baking bread.
La farine est un ingrédient clé pour faire du pain.
B2 noun ˌɪn.tɪˈɡreɪ.ʃən

integration

Intégration. Unification.
Meaning
The action or process of integrating; the process of combining or adding parts to make a unified whole.
Example
Integration of networks will improve global communication.
L'intégration des réseaux améliorera la communication mondiale.
C2 noun /ˌɪndɛnˈteɪʃən/

indentation

indentation
Meaning
A space left at the beginning of a line of text; a notch or deep recess on a surface.
Example
The teacher asked the students to use proper indentation in their essays.
Le professeur a demandé aux élèves d'utiliser une indentation correcte dans leurs essais.
C2 adjective /ɪmˈplækəbl/

implacable

implacable
Meaning
unable to be appeased, calmed, or pacified
Example
The soldiers faced an implacable enemy who refused to surrender.
Les soldats ont affronté un ennemi implacable qui a refusé de se rendre.
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.
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.
B2 adjective /ɪˈmens/

Immense

immense; colossal; énorme
Meaning
extremely large or great; huge
Example
The immense mountain range stretched across the horizon.
La chaîne de montagnes immense s'étendait à travers l'horizon.
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

inefficace
Meaning
Not producing any significant or desired effect; not achieving the intended result.
Example
Rote learning often proves to be ineffective.
L'apprentissage par cœur prouve souvent son inefficacité.
C1 adjective /ɪnˈsɛp(ə)rəbəl/

inseparable

inséparable
Meaning
Unable to be separated or always together.
Example
The two friends have been inseparable since childhood.
Les deux amis sont inséparables depuis l'enfance.
B1 noun /ɪnˈtɛnʃən/

intention

intention
Meaning
A plan, aim, or purpose behind an action.
Example
Her intention was to finish the project before the deadline.
Son intention était de terminer le projet avant la date limite.
C1 noun /ɪnˈdʒʌŋkʃən/

injunction

injonction
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.
Le tribunal a émis une injonction pour empêcher l'entreprise de polluer la rivière.
C2 noun /ɪnˈvɛktɪv/

invective

langage injurieux
Meaning
Insulting, abusive, or highly critical language.
Example
The politician’s speech was filled with invective against his opponents.
Le discours du politicien était rempli d'invectives contre ses adversaires.
B1 verb ɪnˈvɛst

invest

investir
Meaning
To put money, effort, time, etc. into something to make a profit or get an advantage.
Example
Investing in intellectual property can generate passive income.
Investir dans la propriété intellectuelle peut générer des revenus passifs.
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 /ˈɪntrɪkət/

intricate

complexe
Meaning
very detailed, complex, and difficult to understand
Example
The artist created an intricate pattern on the wall.
L'artiste a créé un motif complexe sur le mur.
A2 adjective /ˈɪn.dɔːr/

indoor

d'intérieur
Meaning
situated, occurring, or used inside a building
Example
Indoor plants can improve air quality at home.
Les plantes d'intérieur peuvent améliorer la qualité de l'air à la maison.
B2 adjective /ɪˈmædʒ.ɪ.nər.i/

Imaginary

imaginaire; fictif; irréel
Meaning
existing only in imagination; not real; fictional
Example
The child had an imaginary friend who she talked to every day.
L'enfant avait un ami imaginaire avec lequel elle parlait tous les jours.
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.
C2 verb /ɪmˈpɛnd/

impend

se profiler
Meaning
to be about to happen; to loom threateningly
Example
Dark clouds suggested that a storm was impeding.
Les nuages sombres suggéraient qu'une tempête était imminente.
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 /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 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.
C2 adverb /ɪnˈdjuːbɪtəbli/

indubitably

indubitablement
Meaning
Without a doubt; certainly.
Example
She is indubitably the best candidate for the job.
Elle est indubitablement la meilleure candidate pour le poste.
C1 noun /ˌɪnkəmˈpliːtnəs/

incompleteness

incomplétude
Meaning
the state of not being complete or whole; lack of necessary parts or fullness
Example
The incompleteness of the report caused delays in the project.
L’incomplétude du rapport a causé des retards dans le projet.
C1 noun ˌɪn.fɪlˈtreɪ.ʃən

infiltration

infiltration, accès secret
Meaning
The process of entering or gaining access to an organization or place surreptitiously.
Example
Cybersecurity prevents infiltration into sensitive data.
La cybersécurité empêche l'infiltration des données sensibles.
B2 noun /ˈɪm.pʌls/

Impulse

impulsion; désir soudain
Meaning
a sudden strong and unreflective urge or desire to act; a driving force or motivation
Example
She bought the expensive dress on impulse and later regretted the purchase.
Elle a acheté la robe chère sur un coup de tête et a ensuite regretté l'achat.
C2 verb /ɪˈnjʊər/

inure

habituer
Meaning
To become accustomed to something, especially something unpleasant.
Example
Soldiers quickly became inured to the harsh conditions.
Les soldats se sont rapidement habitués aux conditions difficiles.
C1 verb /ɪnˈkɜːr/

incur

encourir
Meaning
To bring upon oneself something undesirable, usually as a result of actions.
Example
He incurred a fine for parking in the wrong place.
Il a encouru une amende pour avoir garé sa voiture au mauvais endroit.
C2 adjective /ɪnˈɛksərəbl/

inexorable

inexorable
Meaning
Impossible to stop or prevent; relentless.
Example
The inexorable rise of technology is changing every aspect of life.
La montée inexorable de la technologie change chaque aspect de la vie.
B2 adverb /ɪnˈɛvɪtəbli/

inevitably

inévitable
Meaning
in a way that cannot be avoided or prevented
Example
Inevitably, the team faced challenges during the project.
Inévitablement, l'équipe a rencontré des défis pendant le projet.