incredulity
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C2 noun /ˌɪnkrɪˈdjuːləti/

incredulity

incrédulité
Meaning
the state of being unwilling or unable to believe something
Example
She looked at him with incredulity after hearing the strange story.
Elle le regarda avec incrédulité après avoir entendu l'histoire étrange.
B2 noun ɪˈmjuː.nɪ.ti

immunity

immunité
Meaning
The ability of an organism to resist a particular infection or toxin by the action of specific antibodies.
Example
A strong immunity protects against infections.
Une forte immunité protège contre les infections.
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 verb /ˌɪn.trəˈspekt/

introspect

introspecter
Meaning
To examine one's own thoughts, feelings, or mental state.
Example
He often introspects before making important decisions.
Il se livre souvent à de l'introspection avant de prendre des décisions importantes.
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.
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.
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 verb /ɪɡˈnaɪt/

ignite

enflammer
Meaning
To catch fire or cause to catch fire; to start or arouse.
Example
The sparks ignited the dry leaves in seconds.
Les étincelles ont enflammé les feuilles sèches en quelques secondes.
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.
C2 adjective /ɪnˈkɑːdʒɪtənt/

incogitant

irréfléchi
Meaning
Lacking thought; inconsiderate or thoughtless.
Example
It was incogitant of him to make such a rude comment.
C'était incogitant de sa part de faire un commentaire aussi grossier.
C1 adjective /ɪnˈsteɪbəl/

instable

instable
Meaning
not stable; liable to change, collapse, or fail; lacking firmness or reliability
Example
The instable political situation worried foreign investors.
La situation politique instable a inquiété les investisseurs étrangers.
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 verb /ˈɪmɪɡreɪt/

immigrate

immigrer
Meaning
to come to live permanently in a foreign country
Example
He immigrated to Canada five years ago.
Il a immigré au Canada il y a cinq ans.
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

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

Irrelevant

irrélévant
Meaning
not connected with or relevant to something; having no bearing on the matter
Example
Your past mistakes are irrelevant to this discussion.
Vos erreurs passées sont irrélévantes pour cette discussion.
A2 adverb /ɪˈmiːdiətli/

immediately

immédiatement
Meaning
at once; without delay
Example
She responded immediately to the emergency call.
Elle a répondu immédiatement à l'appel d'urgence.
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.
C2 adjective ɪnˈfiː.zə.bəl

infeasible

infaisable
Meaning
Not possible to do easily or conveniently; impracticable.
Example
Restoring the forest may become infeasible if destruction continues.
Restaurer la forêt peut devenir infaisable si la destruction continue.
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 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.
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 /ɪmˈprɒbəbl/

improbable

improbable
Meaning
Not likely to be true or to happen.
Example
It seems improbable that he will arrive on time.
Il semble improbable qu'il arrive à l'heure.
C1 noun /ˈɪŋklɪŋ/

inkling

indice
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
Elle avait une vague idée qu'il préparait une surprise.
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.
C1 verb /ɪmˈpɪndʒ/

impinge

affecter
Meaning
to have an effect or impact on something; to encroach or infringe
Example
The noise from the construction site impinges on our daily activities.
Le bruit du chantier impacte nos activités quotidiennes.
C2 noun /ˈɪmpjʊdəns/

impudence

impudence
Meaning
Rude and disrespectful behavior.
Example
The student's impudence shocked the entire class.
L'impudence de l'étudiant a choqué toute la classe.
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 noun /ˌɪməˈtjʊərəti/

immaturity

immaturité
Meaning
the state of not being fully developed emotionally, mentally, or physically; lack of maturity
Example
His immaturity made it difficult for him to handle responsibility.
Son immaturité a rendu la gestion des responsabilités difficile.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

insignifiant
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
Le coût était tellement insignifiant que personne ne l'a remarqué.
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

inconfortable; gênant; problématique
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
L'ascenseur cassé a rendu l'accès au dernier étage inconfortable.
B2 adjective /ɪˈmɒrəl/

immoral

immoral
Meaning
Not conforming to accepted standards of morality; unethical or wicked.
Example
He was fired for his immoral behavior.
Il a été renvoyé pour son comportement immoral.
C2 noun /ˈɪnroʊd/

inroad

progrès
Meaning
An advance or significant progress, often at the expense of something else.
Example
The company made significant inroads into the mobile market.
L'entreprise a réalisé des progrès significatifs sur le marché mobile.
A2 adjective /ɪmˈpɑːsəbl/

impossible

impossible
Meaning
not able to occur, exist, or be done
Example
It is impossible to finish this work in one day.
Il est impossible de finir ce travail en une journée.
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 adjective /ɪˈniː.bri.eɪ.tɪd/

inebriated

ivrogne
Meaning
under the influence of alcohol; drunk
Example
He stumbled into the room completely inebriated.
Il est entré dans la pièce complètement ivre.
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.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

insurmontable
Meaning
Impossible to overcome or surpass.
Example
The team faced insuperable challenges during the expedition.
L'équipe a fait face à des défis insurmontables lors de l'expédition.
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.
B2 noun ˌɪn.təˈven.ʃən

intervention

intervention
Meaning
The action or process of intervening; involvement in a situation to improve or help it.
Example
The intervention of the UN was crucial in resolving the conflict.
L'intervention de l'ONU a été cruciale pour résoudre le conflit.
B2 noun ɪnˌdʌstrɪəlaɪˈzeɪʃən

industrialization

industrialisation
Meaning
The development of industries in a country or region on a wide scale.
Example
Industrialization changed the global economy dramatically.
L'industrialisation a radicalement changé l'économie mondiale.
C2 noun /ɪnˈtɜːrstɪs/

interstice

interstice
Meaning
a small space that lies between things
Example
Light filtered through the narrow interstices of the wall.
La lumière s'est filtrée à travers les étroites interstices du mur.
B1 verb /ɪnˈvɛs.tɪ.ɡeɪt/

investigate

enquêter
Meaning
to carry out a systematic inquiry to discover facts or information
Example
The police will investigate the incident thoroughly.
La police enquêtera sur l'incident de manière approfondie.
A2 preposition /ɪnˈkluːdɪŋ/

including

y compris
Meaning
used to show that someone or something is part of a larger group
Example
Many people attended the event, including students and teachers.
Beaucoup de personnes ont assisté à l'événement, y compris des étudiants et des enseignants.
C2 adjective /ˌaɪdəˈlɑːtrɪəs/

idolatrious

idolâtre
Meaning
Excessively devoted or reverent towards idols or false gods.
Example
The ancient tribe was known for its idolatrious practices.
La tribu ancienne était connue pour ses pratiques idolâtres.
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

bois de fer
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
L'arbre de bois de fer fleurit avec de petites fleurs blanches.
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 adjective /ɪˈledʒ.ə.bəl/

illegible

illisible
Meaning
Not clear enough to be read; unreadable.
Example
The doctor’s handwriting was almost illegible.
L'écriture du médecin était presque illisible.
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

invalidité
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
Le tribunal a jugé que le contrat souffrait d’invalidité.
C2 noun /ɪnˈtɛnʃən/

intension

contenu interne
Meaning
The internal content of a concept; the set of attributes implied by a word or phrase.
Example
The intension of the word 'dog' includes being a mammal and domesticated.
L'intension du mot 'chien' inclut être un mammifère et être domestiqué.
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.
B1 verb /ɪnˈfɔ:m/

inform

informer
Meaning
to tell someone about something; to give information
Example
Please inform me when you arrive at the airport.
s'il vous plaît, informez-moi lorsque vous arrivez à l'aéroport.
C2 adjective /ɪɡˈnoʊ.bəl/

Ignoble

ignoble; méprisable; bas
Meaning
dishonorable; not noble in character; base or mean
Example
His ignoble actions betrayed his friends' trust.
Ses actions ignobles ont trahi la confiance de ses amis.
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.
C1 verb /ɪnˈfɛst/

infest

infester
Meaning
to overrun in large numbers, especially so as to cause damage or discomfort
Example
The old house was infested with rats.
La vieille maison était infestée de rats.
C2 noun /ˌaɪ.diˈeɪ.ʃən/

ideation

Le processus de création et de développement de nouvelles idées ou concepts par la pensée créative et le brainstorming.
Meaning
The process of forming and developing new ideas or concepts through creative thinking and brainstorming.
Example
The team engaged in ideation sessions to generate new product ideas.
L'équipe a participé à des sessions de génération d'idées pour créer de nouvelles idées de produits.
C1 noun /ˌɪnfɪˈdɛləti/

infidelity

infidélité
Meaning
the act of being unfaithful to a spouse or partner
Example
Their marriage ended due to his infidelity.
Leur mariage a pris fin à cause de son infidélité.
C2 noun /ɪˈreɪdiəns/

irradiance

irradiance
Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
L'irradiance du soleil à midi était accablante.
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 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.
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 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 /ɪnˈkrɛdjələs/

incredulous

Meaning
unwilling or unable to believe something
Example
He gave her an incredulous look when she claimed she could fly.
C2 noun /ˈɪmɪˌteɪtər/

imitator

imitateur
Meaning
a person who copies the behavior, style, or actions of others
Example
He became famous as an imitator of popular singers.
Il est devenu célèbre en tant qu'imitateur de chanteurs populaires.
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.
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.
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.
C2 adjective /ˌɪnkoʊˈɜːrsəbl̩/

incoercible

incoercible
Meaning
Not capable of being forced, compelled, or restrained.
Example
Her incoercible spirit inspired others to fight for justice.
Son esprit incoercible a inspiré les autres à lutter pour la justice.
C2 noun /ˈɪntərˌloʊpər/

interloper

intrus
Meaning
A person who becomes involved in a situation or place where they are not wanted.
Example
He felt like an interloper at the private family gathering.
Il se sentait comme un intrus lors de la réunion familiale privée.
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

instinctif, naturel, automatique
Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
Sa réaction instinctive lui a sauvé la vie.
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.
B1 verb /ˌɪntəˈrʌpt/

interrupt

interrompre
Meaning
to stop someone from speaking or doing something by suddenly saying or doing something
Example
She tried not to interrupt while he was speaking.
Elle a essayé de ne pas interrompre pendant qu'il parlait.
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.
B2 noun ˌɪr.ɪˈɡeɪ.ʃən

irrigation

irrigation
Meaning
The artificial application of water to land or soil.
Example
Irrigation systems improve crop yields in dry regions.
Les systèmes d'irrigation améliorent les rendements des cultures dans les régions sèches.
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.
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.
B2 noun /ˈɪnˌteɪk/

intake

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

iliad

Iliade
Meaning
An ancient Greek epic poem attributed to Homer, describing the events of the Trojan War.
Example
Students studied the Iliad to understand Greek mythology and heroism.
Les étudiants ont étudié l'Iliade pour comprendre la mythologie grecque et l'héroïsme.
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.
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.
A2 verb /ɪnˈkri:s/

increase

augmenter
Meaning
to become or make something larger in amount, number, or degree
Example
The company plans to increase its production this year.
L'entreprise prévoit d'augmenter sa production cette année.
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.
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 /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.
C1 adjective /ɪnˈvɑːlənˌtɛri/

involuntary

involontaire
Meaning
done without will or conscious control
Example
He gave an involuntary shiver when he heard the loud noise.
Il a eu un frisson involontaire lorsqu'il a entendu le bruit fort.
B2 adjective /aɪˈrɒnɪk/

ironic

ironique, sarcastique
Meaning
happening in the opposite way to what is expected, often amusing or sarcastic
Example
It is ironic that the fire station burned down.
Il est ironique que la caserne de pompiers ait brûlé.
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.
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

irréligieux
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
Certaines personnes dans la communauté le considèrent comme irréligieux car il ne va jamais aux services religieux.
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.
B2 adjective /ˈɪnˌsaɪtfəl/

insightful

perspicace
Meaning
Showing deep understanding or perceptiveness.
Example
The professor gave an insightful lecture on global economics.
Le professeur a donné une conférence perspicace sur l'économie mondiale.
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.
C2 noun /ˈɪntərˌveɪl/

intervale

terre basse le long d'une rivière, généralement fertile et plate
Meaning
A low-lying tract of land along a river, usually fertile and flat.
Example
The farmers cultivated crops on the lush intervale by the river.
Les agriculteurs ont cultivé des cultures dans l'intervalle fertile près de la rivière.
C2 noun /ˈɪɡ.nəˌmɪn.i/

ignominy

ignominie
Meaning
Public shame, disgrace, or dishonor.
Example
He lived the rest of his life in ignominy after the scandal.
Il a vécu le reste de sa vie dans l'ignominie après le scandale.
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.
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.
A1 conjunction /ɪf/

if

si
Meaning
used to introduce a condition or supposition
Example
If it rains tomorrow, we will stay home.
Si il pleut demain, nous resterons à la maison.
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.
C1 noun ˌɪn.toʊˈneɪ.ʃən

intonation

intonation
Meaning
The rise and fall of tone in speech and pronunciation.
Example
Proper intonation enhances the clarity of a speech.
Une intonation appropriée améliore la clarté d'un discours.
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.
B2 adjective /ɪnˈtɛnsɪv/

intensive

intensif
Meaning
Involving a lot of effort, energy, or concentration in a short period of time.
Example
She attended an intensive English course before moving abroad.
Elle a suivi un cours intensif d'anglais avant de partir à l'étranger.
B2 adjective /ˌɪnstɪˈtjuːʃənl/

institutional

institutionnel
Meaning
Relating to an organization or established practice.
Example
The government made several institutional reforms in education.
Le gouvernement a mis en œuvre plusieurs réformes institutionnelles dans l'éducation.
A1 adjective /ɪmˈpɔː.tənt/

important

important
Meaning
Of great significance or value; likely to have a profound effect on success, survival, or well-being.
Example
Important steps must be taken to address pollution.
Des mesures importantes doivent être prises pour résoudre la pollution.
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 noun /ɪnˈfrækʃən/

infraction

infraction
Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
L'étudiant a été puni pour une infraction mineure aux règles de l'école.
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 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.
C2 adjective/verb /ɪnˈkɑːrneɪt/

incarnate

incarné
Meaning
to embody or represent in human form; in flesh
Example
She is kindness incarnate.
Elle est la bonté incarnée.
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 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.
B2 noun /ɪnˈvɛstɪˌɡeɪtər/

investigator

bonheur
Meaning
a person who carries out a formal inquiry or investigation
Example
The investigator gathered evidence from the crime scene.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
B2 verb /ɪnˈdjuːs/

induce

induire
Meaning
to cause or persuade someone to do something; to bring about a result
Example
The doctor induced sleep with a mild sedative.
Le médecin a induit le sommeil avec un sédatif léger.
C1 adjective /ɪnˈɛlɪdʒəbəl/

Ineligible

inéligible; non qualifié; inapte
Meaning
not qualified or entitled to participate or be chosen; unsuitable
Example
Students with poor grades are ineligible for the scholarship program.
Les étudiants avec de mauvaises notes sont inéligibles pour le programme de bourses.
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.
C1 verb /ɪnˈfjʊərieɪt/

infuriate

mettre en colère
Meaning
To make someone extremely angry.
Example
His careless remarks infuriated the entire team.
Ses remarques imprudentes ont mis en colère toute l'équipe.
C1 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

insurmontable
Meaning
Too great to be overcome.
Example
The explorers faced insurmountable odds in the desert.
Les explorateurs ont fait face à des obstacles insurmontables dans le désert.
C2 noun /ɪnˌtɛl.ɪˈdʒɛntsi.ə/

intelligentsia

intelligentsia
Meaning
The group of people engaged in intellectual and cultural pursuits in a society.
Example
The intelligentsia played a key role in shaping public opinion.
L'intelligentsia a joué un rôle clé dans la formation de l'opinion publique.
A2 adjective/noun /ˈɪndiən/

indian

indien
Meaning
Relating to India, its people, or their culture.
Example
She loves Indian food, especially biryani.
Elle adore la nourriture indienne, surtout le biryani.
C2 adjective /ˈɪnfəntaɪl/

infantile

infantile
Meaning
characteristic of an infant; childish
Example
His infantile behavior embarrassed everyone at the meeting.
Son comportement infantile a embarrassé tout le monde à la réunion.
C1 verb /ɪnˈterəˌɡeɪt/

interrogate

interroger
Meaning
to ask someone questions in a thorough and formal way; to question intensively
Example
The police interrogated the suspect for hours.
La police a interrogé le suspect pendant des heures.
B2 noun /ˈɪmɪɡrənt/

immigrant

immigrant
Meaning
a person who comes to live permanently in a foreign country
Example
The city has welcomed many new immigrants this year.
La ville a accueilli de nombreux nouveaux immigrants cette année.
B2 adjective /ɪnˈdɪf.ər.ənt/

indifferent

indifférent
Meaning
having no particular interest or concern; not caring one way or another
Example
She was indifferent to the outcome of the match.
Elle était indifférente au résultat du match.
C1 noun /ˈɪn.trə.vɜːrt/

introvert

introverti
Meaning
A person who tends to be shy and prefers spending time alone rather than in groups.
Example
As an introvert, he preferred reading over attending parties.
En tant qu'introverti, il préférait lire plutôt qu'assister à des fêtes.