interpolate
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN Anglais BN Bengali HI Hindi ES Espagnol FR Français DE Allemand RU Russe ZH Chinois JA Japonais
All Vocabulary Cards All Vocabularies
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.
B1 abbreviation /ˌaɪˈiː/

ie

c'est-à-dire
Meaning
That is to say; used to clarify or explain something more precisely.
Example
Many amphibians, i.e., frogs and salamanders, can live both in water and on land.
De nombreux amphibiens, c'est-à-dire des grenouilles et des salamandres, peuvent vivre à la fois dans l'eau et sur terre.
B2 noun /aɪˈdiː/

id

pièce d'identité
Meaning
identification; a document or number used to prove who someone is
Example
Please show your ID at the entrance.
Veuillez montrer votre pièce d'identité à l'entrée.
B2 verb /ɪmˈpoʊz/

impose

imposer
Meaning
to force someone to accept something; to establish or apply by authority
Example
The government imposed new taxes on luxury goods.
Le gouvernement a imposé de nouvelles taxes sur les produits de luxe.
A2 noun /ˈɪlnəs/

illness

maladie
Meaning
A condition of being unwell or suffering from a disease.
Example
She missed school due to a serious illness.
Elle a manqué l'école à cause d'une grave maladie.
C1 noun /ɪnˈfjuːʒən/

infusion

infusion
Meaning
the act of introducing something into another; a drink made by steeping leaves or herbs in liquid
Example
She prepared a calming infusion of chamomile tea.
Elle a préparé une infusion apaisante de thé à la camomille.
B1 adjective /ɪmˈpeɪʃənt/

impatient

impatient
Meaning
Not able to wait calmly; restless and eager for something to happen.
Example
She grew impatient while waiting in the long queue.
Elle est devenue impatiente en attendant dans la longue file.
B2 noun /ɪnˈfek.ʃən/

Infection

infection
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
Le médecin a prescrit des antibiotiques pour traiter l'infection bactérienne dans sa gorge.
A2 noun /ˈɪndʒəri/

injury

blessure
Meaning
Harm or damage to a person’s body caused by an accident or attack.
Example
He suffered a serious injury during the football match.
Il a subi une grave blessure pendant le match de football.
B2 verb /ɪnˈsʌlt/

insult

insulter
Meaning
to speak or act in a way that hurts someone's feelings or shows disrespect
Example
He felt insulted by her rude comments.
Il s'est senti insulté par ses commentaires impolis.
B2 adjective /ɪnˈfɪə.ri.ər/

inferior

inférieur
Meaning
Of lower quality, rank, or status.
Example
This material is inferior to the one we used before.
Ce matériau est inférieur à celui que nous avons utilisé auparavant.
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.
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.
B1 adjective /ɪmˈpres.ɪv/

Impressive

impressionnant
Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
Sa performance impressionnante lui a valu une ovation debout.
C2 adjective /ˌɪm.pəˈfɛk.tə.bəl/

imperfectible

imparfaitible
Meaning
Incapable of being made perfect or complete.
Example
Some human qualities are considered imperfectible.
Certaines qualités humaines sont considérées comme imparfaitibles.
C2 noun /ˈɪnˌɡreɪt/

ingrate

ingrat
Meaning
An ungrateful person; someone who shows no appreciation.
Example
He worked hard for his friend, but the ingrate never thanked him.
Il a travaillé dur pour son ami, mais l'ingrat ne l'a jamais remercié.
C2 noun /aɪər/

ire

colère, rage
Meaning
intense anger or rage
Example
The new policy provoked the ire of the employees.
La nouvelle politique a provoqué la colère des employés.
C1 adjective /ɪnˈɡreɪnd/

ingrained

enraciné
Meaning
Firmly fixed or established; deeply rooted and difficult to change.
Example
His ingrained habits were hard to break.
Ses habitudes enracinées étaient difficiles à briser.
C2 adjective /ɪmˈpɛn.ɪ.tənt/

impenitent

impénitent
Meaning
Not feeling regret or shame about one's actions.
Example
The criminal remained impenitent after the trial.
Le criminel est resté impénitent après le procès.
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.
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 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.
B2 noun /ɪnˈsɪstəns/

insistence

insistance
Meaning
the act of demanding something firmly or repeatedly
Example
At his insistence, we stayed longer.
À son insistance, nous sommes restés plus longtemps.
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.
C2 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

interpolation
Meaning
The act of inserting something into a text or estimating values within a sequence of data.
Example
The scientist used interpolation to predict the missing data points.
Le scientifique a utilisé l'interpolation pour prédire les points de données manquants.
B2 adjective + noun aɪˈdiːəl ɪnˈvaɪrənmənt

ideal environment

environnement idéal
Meaning
Perfect or most suitable conditions for growth or development
Example
Winter creates an ideal environment for vegetable growth.
L'hiver crée un environnement idéal pour la croissance des légumes.
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 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 /ˌɪntərˈmɪt/

intermit

interrompre
Meaning
To suspend or stop for a time; to pause intermittently.
Example
The rain would intermit and then start again.
La pluie s'interromprait puis recommencerait.
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.
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 noun /ɪnˈfriːkwəns/

infrequence

infréquence
Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
L'infréquence de leurs réunions rendait difficile le maintien de liens étroits.
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 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.
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.
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.
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.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

inconstance
Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
L'inconstance du temps rend la planification difficile.
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.
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 /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 adjective /ɪnˈkɒmp(ə)rəbl/

incomparable

incomparable
Meaning
Without an equal in quality or excellence; matchless.
Example
The view from the mountain was incomparable.
La vue depuis la montagne était incomparable.
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

institutionnaliser
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
Le gouvernement cherche à institutionnaliser la protection de l'environnement.
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 noun /ˌɪnkwɪˈzɪʃən/

inquisition

inquisition
Meaning
A prolonged and intense questioning or investigation, often harsh in nature.
Example
The journalist faced an inquisition from the panel about his sources.
Le journaliste a fait face à une inquisition de la part du panel sur ses sources.
C2 verb /aɪˈdɒləˌtraɪz/

idolatrize

idolâtrer
Meaning
To worship idols; to regard with excessive devotion or admiration.
Example
They began to idolatrize the statue as a deity.
Ils ont commencé à idolâtrer la statue comme une divinité.
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.
C2 verb /ɪnˈhjuːm/

inhume

inhumer
Meaning
to bury a dead body in the ground
Example
They inhumed the warrior with full honors.
Ils ont inhumé le guerrier avec tous les honneurs.
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.
C2 adjective /ˌɪnfɪnɪˈtɛsɪməl/

infinitesimal

infinitésimal
Meaning
Extremely small in size or amount; so tiny as to be almost negligible.
Example
The error was so infinitesimal that it didn’t affect the results.
L'erreur était si infinitésimale qu'elle n'a pas affecté les résultats.
B2 verb /ɪnˈtriːɡ/

intrigue

intriguer
Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
Le roman mystère intriguerait n'importe quel lecteur.
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.
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.
C2 adjective /ɪnˈɡreɪʃiˌeɪtɪŋ/

ingratiating

flatteur
Meaning
Charming or flattering in a way intended to gain favor.
Example
His ingratiating smile made everyone trust him quickly.
Son sourire flatteur a fait en sorte que tout le monde lui fasse rapidement confiance.
C1 adjective /ˌɪntəˈrɑːɡətɪv/

interrogative

interrogatif
Meaning
Relating to or conveying a question; in grammar, used to form questions.
Example
She raised an interrogative eyebrow when she heard the news.
Elle haussa un sourcil interrogatif lorsqu'elle entendit la nouvelle.
C2 noun /ɪmˈpaɪ.ə.ti/

Impiety

impiété
Meaning
lack of piety or reverence, especially for a god; disrespect or irreverence toward religious matters
Example
His impiety shocked the religious community when he mocked their sacred ceremonies.
Son impiété a choqué la communauté religieuse lorsqu'il s'est moqué de leurs cérémonies sacrées.
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 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.
A2 verb /ɪɡˈnɔːr/

ignore

ignorer
Meaning
to refuse to take notice of; to disregard intentionally
Example
She decided to ignore the rude comments.
Elle a décidé d'ignorer les commentaires désobligeants.
C2 adjective /ˌɪndaɪˈdʒestəbəl/

Indigestible

indigeste; difficile à digérer
Meaning
difficult or impossible to digest; hard to process in the stomach
Example
The old bread became hard and indigestible.
Le vieux pain est devenu dur et indigeste.
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.
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 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.
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.
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 /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.
C1 adjective /ɪˈnænɪmət/

inanimate

objet inanimé
Meaning
not alive, especially not in the manner of animals and humans; lifeless
Example
The museum was full of inanimate objects from ancient times.
Le musée était rempli d'objets inanimés datant de l'époque ancienne.
C1 noun /ɪmˈpɛd.ɪ.mənt/

impediment

obstacle
Meaning
A hindrance or obstruction in doing something; something that prevents progress.
Example
Lack of funds is a major impediment to the project.
Le manque de fonds est un obstacle majeur pour le projet.
C2 adjective /ɪˈrɛzəluːt/

irresolute

indécis
Meaning
uncertain or indecisive; lacking determination
Example
He stood irresolute at the crossroads, unsure which path to take.
Il resta indécis au carrefour, ne sachant quel chemin prendre.
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.
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.
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.
C2 noun /ˌɪntərˈsɛsər/

intercessor

intercesseur
Meaning
a person who intervenes or pleads on behalf of another
Example
He acted as an intercessor to resolve the conflict between the two families.
Il a agi en tant qu'intercesseur pour résoudre le conflit entre les deux familles.
C1 adjective /ɪmˈpɜːrviəs/

impervious

imperméable
Meaning
Not allowing fluid to pass through; unable to be affected by something.
Example
The jacket is impervious to rain.
La veste est imperméable à la pluie.
B2 noun ˈɪnər strɛŋkθ

inner strength

force intérieure
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
Le service communautaire favorise la force intérieure chez les individus.
B2 noun /ˌɪm.ɪˈteɪ.ʃən/

Imitation

imitation; copie; réplique
Meaning
the action of using someone or something as a model; a copy of something original
Example
His imitation of the famous actor was so good that everyone burst into laughter.
son imitation de l'acteur célèbre était tellement bonne que tout le monde a éclaté de rire.
C2 verb /ˈɪŋkʌlpeɪt/

inculpate

accuser
Meaning
To blame or accuse someone of wrongdoing.
Example
The evidence seemed to inculpate the suspect in the crime.
Les preuves semblaient accuser le suspect dans le crime.
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.
B2 adjective /ˌɪrɪˈzɪstəbəl/

Irresistible

irrésistible
Meaning
too attractive and tempting to be resisted; impossible to resist
Example
The chocolate cake was absolutely irresistible.
The chocolate cake was absolutely irresistible.
B2 adverb /ɪmˈpɒlɪtli/

impolitely

impoliment
Meaning
in a rude or discourteous manner; without showing respect or proper manners
Example
He spoke impolitely to the waiter despite the polite service.
Il a parlé impoliment au serveur malgré le bon service.
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 /ɪnˈtrɛpɪd/

intrepid

intrépide
Meaning
fearless and adventurous, often used humorously
Example
The intrepid traveler explored the jungle alone.
Le voyageur intrépide a exploré la jungle seul.
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.
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, 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.
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.
B2 verb /ɪmˈprɪzən/

imprison

emprisonner
Meaning
to put someone in prison; to confine or restrict someone's freedom
Example
The judge imprisoned the criminal for five years.
Le juge a emprisonné le criminel pour cinq ans.
B2 adjective /ɪmˈpɪəriəl/

imperial

impérial
Meaning
Relating to an empire or emperor; having supreme authority.
Example
The imperial palace was a symbol of the emperor's power.
Le palais impérial était un symbole du pouvoir de l'empereur.
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.
B2 verb /ɪnˈfɛkt/

infect

infecter
Meaning
To contaminate with a disease-causing organism.
Example
The virus can infect healthy people quickly.
Le virus peut infecter rapidement les personnes en bonne santé.
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.
B2 noun /ˌɪmɪˈɡreɪʃən/

immigration

immigration
Meaning
the action of coming to live permanently in a foreign country
Example
Immigration policies vary from country to country.
Les politiques d'immigration varient d'un pays à l'autre.
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 /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.
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.
B1 noun /ˈɪnstrəmənt/

instrument

instrument
Meaning
A tool or device used for a particular purpose, especially for scientific or musical work.
Example
The doctor used a special instrument during the surgery.
Le médecin a utilisé un instrument spécial pendant la chirurgie.
C1 noun /ɪˌreɡjəˈlærɪti/

irregularity

irrégularité
Meaning
lack of regularity or consistency; a deviation from what is normal, expected, or orderly
Example
The audit revealed several financial irregularities in the company’s records.
L’audit a révélé plusieurs irrégularités financières dans les registres de l’entreprise.
C1 noun /ˈɪnstɪˌɡeɪtər/

instigator

instigateur
Meaning
A person who brings about or initiates something, usually something bad.
Example
The police identified him as the instigator of the violence.
La police l'a identifié comme l'instigateur de la violence.
B1 noun /ɪnˈʃʊərəns/

insurance

assurance
Meaning
An arrangement by which a company provides compensation for loss, damage, or illness in return for a premium.
Example
He bought health insurance to cover medical expenses.
Il a acheté une assurance santé pour couvrir les frais médicaux.
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.
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 adjective /ɪnˈsɛnʃənt/

insentient

insensible
Meaning
Lacking perception, consciousness, or sensation.
Example
The rock is an insentient object with no awareness.
Le rocher est un objet insensible sans conscience.
B1 verb /ɪnˈstɔːl/

install

installer
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
Il a installé le nouveau logiciel sur son ordinateur.
C1 noun /ˈɪtʃ.i.nəs/

itchiness

démangeaison
Meaning
The quality or condition of feeling an irritating sensation on the skin that causes a desire to scratch.
Example
Eye itchiness often leads to rubbing.
Les démangeaisons oculaires entraînent souvent des frottements.
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 verb /ɪnˈfleɪm/

inflame

enflammer
Meaning
to arouse strong feelings or provoke anger; to cause inflammation in the body
Example
The politician's remarks served to inflame public opinion.
Les remarques du politicien ont servi à enflammer l'opinion publique.
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 /ɪˈmɒdɪst/

immodest

prétentieux / indécent
Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
Ses remarques prétentieuses ont offensé le public.
B2 adjective /ɪnˈækjərət/

Inaccurate

incorrect; erroné; faux
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
La prévision météorologique était incorrecte hier.
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 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.
C1 noun /ˈɪn.floʊ/

inflow

afflux
Meaning
The movement of things such as money, people, or water into a place.
Example
The inflow of tourists boosted the local economy.
L'afflux de touristes a stimulé l'économie locale.
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.
C2 noun /ˌɪntərˈrɛɡnəm/

interregnum

interrègne
Meaning
A period between rulers or governments when normal leadership is suspended.
Example
The country faced instability during the interregnum after the king’s death.
Le pays a connu de l’instabilité pendant l’interrègne après la mort du roi.
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 noun ˌɪn.tuˈɪʃ.ən

intuition

intuition
Meaning
The ability to understand something immediately, without the need for conscious reasoning.
Example
Her intuition told her something was wrong.
Son intuition lui a dit que quelque chose n’allait pas.
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 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.
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.
A2 noun /ˈɪm.ɪdʒ/

Image

image; représentation; portrait
Meaning
a representation of the external form of a person or thing in art; a mental picture or impression
Example
The company worked hard to improve its public image after the scandal.
L'entreprise a travaillé dur pour améliorer son image publique après le scandale.
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.