incendiary
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C2 adjective /ɪnˈsɛndiˌɛri/

incendiary

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

intemperance

intempérance
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
Son intempérance dans l'alcool a ruiné sa santé.
C2 noun /ˈɪnsələns/

insolence

insolence
Meaning
rude or disrespectful behavior
Example
The teacher was shocked by the student's insolence.
L'enseignant a été choqué par l'insolence de l'élève.
C2 noun /ˌɪntərˈsɛʃən/

intercession

intercession
Meaning
the act of intervening or pleading on behalf of another person
Example
The prisoner was released due to the intercession of influential leaders.
Le prisonnier a été libéré grâce à l'intercession de leaders influents.
C2 adjective /ɪnˈtɛsteɪt/

intestate

décédé sans testament
Meaning
Having died without leaving a valid will.
Example
She died intestate, so her assets were distributed by law.
Elle est décédée sans testament, donc ses biens ont été répartis par la loi.
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.
C2 noun /ɪnˈtɜːrmənt/

interment

inhumation
Meaning
The act of burying a dead body in a grave or tomb.
Example
The interment took place at the family cemetery.
L'inhumation a eu lieu au cimetière familial.
C2 adjective /ɪˈrɛfrəɡəbəl/

irrefragable

irréfutable
Meaning
Impossible to refute, deny, or break
Example
The lawyer presented irrefragable evidence that proved his client’s innocence.
L'avocat a présenté des preuves irréfutables qui ont prouvé l'innocence de son client.
C2 verb /ɪnˈsɪnəˌreɪt/

incinerate

incinérer
Meaning
to burn something completely until it is reduced to ashes
Example
The city decided to incinerate the medical waste for safety.
La ville a décidé d'incinérer les déchets médicaux pour des raisons de sécurité.
C2 adjective /ˌɪnkɔːrˈpɔːriəl/

incorporeal

incorporel
Meaning
lacking a physical body; not composed of matter; intangible
Example
Ghosts are often described as incorporeal beings.
Les fantômes sont souvent décrits comme des êtres incorporels.
C2 noun /ɪˈmɒdəsti/

immodesty

immodestie
Meaning
lack of modesty or decency; behavior or attitude that is overly bold or improper
Example
The article was criticized for its tone of immodesty.
L’article a été critiqué pour son ton d’immodestie.
C2 adjective /ˈɪkθiɪk/

ichthyic

ichtyique
Meaning
Relating to or resembling fish.
Example
The artist's painting had an ichthyic quality.
La peinture de l'artiste avait une qualité ictyique.
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.
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.
C2 adjective /ɪmˈpɪəriəs/

imperious

impérieux
Meaning
Arrogantly domineering or overbearing.
Example
Her imperious tone made it hard for others to argue.
Son ton impérieux rendait difficile pour les autres de discuter.
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.
C2 verb /ɪnˈveɪɡəl/

inveigle

manipuler
Meaning
To persuade someone to do something by deception or flattery.
Example
She inveigled him into signing the contract.
Elle l'a dupé pour qu'il signe le contrat.
C2 verb /ɪmˈpeɪl/

impale

empaler
Meaning
to pierce or fix something with a sharp object
Example
The knight was impaled by the enemy’s spear.
Le chevalier a été empalé par la lance de l'ennemi.
C2 noun /ɪˈrɛvərəns/

irreverence

irrévérence
Meaning
a lack of respect for people or things that are generally taken seriously
Example
His jokes about religion showed irreverence to the sacred traditions.
Ses blagues sur la religion ont montré de l'irrévérence envers les traditions sacrées.
C2 adjective /ˌɪnæprɪˈhɛnsəbl/

inapprehensible

incompréhensible
Meaning
not understandable; incomprehensible
Example
The concept was so abstract that it seemed inapprehensible to most students.
Le concept était si abstrait qu'il semblait incompréhensible pour la plupart des étudiants.
C2 noun /ɪnˈsaɪzər/

incisor

incisive
Meaning
a narrow-edged tooth at the front of the mouth, adapted for cutting
Example
The dentist noted that his upper left incisor was chipped.
Le dentiste a remarqué que son incisif supérieur gauche était fissuré.
C2 adjective /ɪnˈdjuːbɪtəbl/

indubitable

indubitable
Meaning
Impossible to doubt; unquestionable.
Example
It is indubitable that hard work leads to success.
Il est indubitable que le travail acharné mène au succès.
C2 adjective /ˌɪndɪˈtɜːrmənət/

indeterminate

indéterminé
Meaning
Not exactly known, defined, or established; vague or uncertain.
Example
The project was delayed for an indeterminate amount of time.
Le projet a été retardé pour une période indéterminée.
C2 adjective /ɪmˈprɒvɪdənt/

improvident

imprudent
Meaning
Not having or showing foresight; spending wastefully or without thought for the future.
Example
His improvident habits left him with no savings.
Ses habitudes imprudentes l'ont laissé sans économies.
C2 adjective /ˌɪmpəˈmɪsəbl/

impermissible

interdit
Meaning
Not permitted or allowed.
Example
Such behavior is impermissible in the workplace.
Un tel comportement est interdit sur le lieu de travail.
C2 noun /ˌɪmpəˈtjuːəsəti/

impetuosity

impétuosité
Meaning
The quality of being rash or impulsive.
Example
His impetuosity often got him into trouble.
Son impétuosité le mettait souvent dans des ennuis.
C2 noun /ˌɪmbəˈsɪləti/

imbecility

imbécillité
Meaning
Extreme foolishness, stupidity, or weakness of mind.
Example
The plan was abandoned due to its sheer imbecility.
Le plan a été abandonné en raison de son imbecilité pure.
C2 adjective /ɪnˈvɪdiəs/

invidious

envieux
Meaning
likely to arouse resentment, envy, or anger in others
Example
The manager's invidious remarks created tension among the employees.
Les remarques envieuses du manager ont créé des tensions parmi les employés.
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 /ˈaɪdɪl/

idyll

scène idyllique
Meaning
An extremely happy, peaceful, or picturesque episode or scene, often idealized.
Example
Their honeymoon was an idyll on a tropical island.
Leur lune de miel était une scène idyllique sur une île tropicale.
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.
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 adjective /ɪˈlɪmɪtəbl/

illimitable

illimité
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
L'univers est souvent décrit comme illimité.
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.
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.
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.
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.
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.
C2 adjective /ˈɪnmoʊst/

inmost

le plus intime
Meaning
Situated at the very heart or deepest part; most private or secret.
Example
She revealed her inmost thoughts to her closest friend.
Elle a révélé ses pensées les plus intimes à son ami le plus proche.
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.
C2 verb /ˈɪntərˌdɪkt/

interdict

interdire
Meaning
to prohibit or forbid something by authoritative order, often by law or decree
Example
The court moved to interdict the sale of the illegal goods.
Le tribunal a décidé d'interdire la vente des biens illégaux.
C2 adjective /ˈɪmənənt/

immanent

immanent
Meaning
existing or operating within; inherent
Example
He believed that moral values are immanent in human nature.
Il croyait que les valeurs morales sont immanentes dans la nature humaine.
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.
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

non essentiel
Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
Le rapport supprime les détails non essentiels pour rester concentré.
C2 noun /ˌɪkθiˈɒlədʒɪst/

ichthyologist

ichtyologiste
Meaning
A scientist who studies fish.
Example
The ichthyologist discovered a new species of fish in the river.
L'ichtyologiste a découvert une nouvelle espèce de poisson dans la rivière.
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

amante
Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
Il a écrit un poème dédié à son amante.
C2 noun /ɪnˈdɛntʃər/

indenture

contrat d'indenture
Meaning
A formal legal agreement, contract, or document, often relating to work or service.
Example
In the 18th century, many workers came under indenture to work overseas.
Au XVIIIe siècle, de nombreux travailleurs étaient sous contrat d'indenture pour travailler à l'étranger.
C2 adjective /ɪnˈvaɪələbl/

inviolable

inviolable
Meaning
never to be broken, dishonored, or violated
Example
Human rights are considered inviolable in modern democracies.
Les droits de l'homme sont considérés comme inviolables dans les démocraties modernes.
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.
C2 noun /aɪˈkɒnəklæst/

iconoclast

iconoclaste
Meaning
A person who attacks or criticizes cherished beliefs, traditions, or institutions.
Example
He was known as an iconoclast who challenged old traditions.
Il était connu comme un iconoclaste qui défiait les anciennes traditions.
C2 adjective /ˌɪrɪˈtriːvəbl/

irretrievable

irrécupérable
Meaning
impossible to recover or regain
Example
The documents were lost in an irretrievable way after the fire.
Les documents ont été perdus de manière irrécupérable après l'incendie.
C2 adjective /ɪnhɑːrˈmoʊniəs/

Inharmonious

inharmonieux
Meaning
lacking harmony; discordant in sound; not in tune
Example
The inharmonious sounds from the broken piano made everyone cover their ears.
Les sons inharmonieux du piano cassé ont obligé tout le monde à se couvrir les oreilles.
C2 adjective /ɪˈmɪsəbl/

immiscible

immiscible
Meaning
Describes liquids that do not mix together.
Example
Oil and water are immiscible liquids.
L'huile et l'eau sont des liquides immiscibles.
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.
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 adjective /ɪmˈpælpəbəl/

impalpable

intangible
Meaning
unable to be felt by touch; difficult to grasp or understand
Example
There was an impalpable sense of fear in the room.
Il y avait une sensation intangible de peur dans la pièce.
C2 adjective /ˌɪntərˈlɒkjətəri/

interlocutory

provisoire
Meaning
Given during the course of a legal action, not final but temporary or provisional.
Example
The judge issued an interlocutory order to maintain the status quo until the hearing.
Le juge a émis une ordonnance provisoire pour maintenir le statu quo jusqu'à l'audience.
C2 adjective /ɪˈmɒdərət/

immoderate

immodéré
Meaning
excessive; beyond reasonable limits
Example
He has an immoderate love for sweets.
Il a un amour immodéré pour les bonbons.
C2 verb /ɪˈniː.bri.eɪt/

inebriate

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

inopportune

moment inopportun
Meaning
Happening at a bad or inconvenient time.
Example
His call came at the most inopportune moment.
Son appel est arrivé au moment le plus inopportun.
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 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.
C2 noun /ˌɪnsəˈrɛkʃən/

insurrection

insurrection
Meaning
A violent uprising against an authority or government.
Example
The army was called in to suppress the insurrection.
L'armée a été appelée pour réprimer l'insurrection.
C2 adjective /ɪnˈɡlɔːriəs/

inglorious

honteux
Meaning
Causing shame or disgrace; not bringing honor or glory.
Example
The army suffered an inglorious defeat.
L'armée a subi une défaite honteuse.
C2 noun /ˈaɪ.lət/

islet

îlot
Meaning
A very small island.
Example
The fishermen rested on a tiny islet before continuing their journey.
Les pêcheurs se sont reposés sur un petit îlot avant de continuer leur voyage.
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

irréfragable
Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
La constitution garantit certains droits irréfragables à chaque citoyen.
C2 noun /ɪkˈsɔːr.ə/

Ixora

ixora
Meaning
a tropical flowering shrub with clusters of small bright red, orange, or yellow flowers
Example
The bright red ixora bushes lined the pathway to the tropical garden.
Les buissons d'ixora rouges brillants bordaient le chemin menant au jardin tropical.
C2 adjective /ɪˈrædɪkəbəl/

irradicable

irradicable
Meaning
not able to be eradicated; impossible to destroy or remove completely
Example
The love of a mother for her child is irradicable.
L'amour d'une mère pour son enfant est irradicable.
C2 noun /ɪmˌprɒb.əˈbɪl.ə.ti/

Improbability

improbabilité
Meaning
the quality or state of being improbable; unlikely to be true or to happen
Example
The improbability of winning the lottery twice didn't stop her from buying tickets.
L'improbabilité de gagner à la loterie deux fois ne l'a pas empêchée d'acheter des billets.
C2 adjective /ˌɪrɪˈdɛsənt/

iridescent

iridescent
Meaning
showing luminous colors that seem to change when seen from different angles
Example
She wore an iridescent dress that sparkled in the light.
Elle portait une robe iridescente qui scintillait à la lumière.
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.
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.
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.
C2 adjective /ˌɪnkɒntrəˈvɜːtəbl/

incontrovertible

incontournable
Meaning
impossible to deny or dispute; unquestionable
Example
The evidence was incontrovertible and proved his innocence.
La preuve était incontestable et a prouvé son innocence.
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 noun /ɪnˈkwɪzɪtər/

inquisitor

inquisiteur
Meaning
A person who asks many questions, often in an official or harsh manner.
Example
The inquisitor demanded detailed answers from the witness.
L'inquisiteur a exigé des réponses détaillées du témoin.
C2 adjective /ɪnˈtɛmpərət/

intemperate

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

indivertible

indivertible
Meaning
Not able to be turned aside or diverted.
Example
The judge's indivertible attention was on the case.
L'attention indivertible du juge était sur l'affaire.
C2 noun /ˌɪntərˈlɒkjətər/

interlocutor

interlocuteur
Meaning
a person who takes part in a conversation or dialogue
Example
She was a skilled interlocutor during the debate.
Elle était une interlocutrice habile pendant le débat.
C2 adjective /aɪˈtɪnərənt/

itinerant

itinérant
Meaning
Traveling from place to place, especially for work or duty.
Example
The itinerant teacher moved from village to village to educate children.
L'enseignant itinérant se déplaçait de village en village pour enseigner aux enfants.
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 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.
C2 verb /ɪmˈpjuːt/

impute

imputer
Meaning
to attribute a fault or responsibility to someone
Example
They imputed the company's success to good leadership.
Ils ont imputé le succès de l'entreprise à un bon leadership.
C2 noun /ɪnˈtræn.sɪ.dʒəns/

intransigence

intransigeance
Meaning
Refusal to change one's views or to agree about something.
Example
The negotiations failed due to the intransigence of both parties.
Les négociations ont échoué en raison de l'intransigeance des deux parties.
C2 verb /ˌɪn.trəˈmɪt/

intromit

introduire
Meaning
To insert or introduce something into a place or body.
Example
The doctor carefully intromitted the instrument into the wound.
Le médecin a introduit soigneusement l'instrument dans la plaie.
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 noun /ˈɪntəˌkrɒpɪŋ/

intercropping

cultures intercalaires
Meaning
The agricultural practice of cultivating two or more crops simultaneously in the same field to maximize land use efficiency and improve soil health.
Example
Intercropping can help improve soil fertility and pest control.
Les cultures intercalaires peuvent aider à améliorer la fertilité du sol et à contrôler les ravageurs.
C2 noun /ɪnˈtɛɡ.jʊ.mənt/

integument

revêtement externe
Meaning
A natural outer covering, such as skin, shell, or rind.
Example
The snake sheds its integument as it grows.
Le serpent mue de son revêtement externe à mesure qu'il grandit.
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 /ɪnˈtɛstəsi/

intestacy

décès sans testament
Meaning
The condition of dying without having made a valid will.
Example
His estate was divided according to the laws of intestacy.
Sa succession a été divisée selon les lois de l'intestat.
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.
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.
C2 verb /ɜːrk/

irk

agacer
Meaning
to annoy or irritate someone
Example
It irks me when people are late without calling.
Ça m'agace quand les gens arrivent en retard sans appeler.
C2 adjective /ˌɪməˈmɔːriəl/

immemorial

immémorial
Meaning
Extending back beyond memory or record; ancient.
Example
The tradition has been followed since time immemorial.
La tradition est suivie depuis des temps immémoriaux.
C2 noun /ɪˌluːmɪˈnɑːti/

illuminati

illuminati
Meaning
a group of people claiming to have special enlightenment or secret knowledge, often linked to conspiracies
Example
Many conspiracy theories involve the Illuminati as a secret world-controlling group.
De nombreuses théories du complot impliquent les Illuminati comme un groupe secret contrôlant le monde.
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.
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.
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 /ɪnˈvaɪtər/

invitor

invitant
Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
L’invitant a accueilli les invités à l’entrée.
C2 adjective /ɪnˈkoʊ.ɪt/ or /ɪnˈkoʊ.eɪt/

inchoate

incomplet
Meaning
Just begun and not fully formed; rudimentary.
Example
His inchoate ideas needed more research to be developed.
Ses idées incomplètes avaient besoin de plus de recherches pour être développées.
C2 noun /ɪˈluːmɪnənt/

illuminant

illuminant
Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
La lampe a agi comme un illuminant dans la grotte sombre.
C2 adjective /ˌɪmpɪˈkjuːniəs/

impecunious

pauvre
Meaning
Having little or no money; poor.
Example
He grew up in an impecunious family.
Il a grandi dans une famille pauvre.
C2 noun /ɪmˈpʌlʃən/

impulsion

impulsion
Meaning
a strong urge or drive to act; the act of impelling
Example
His impulsion to travel made him leave his job suddenly.
Son impulsion de voyager l'a poussé à quitter son travail soudainement.
C2 adjective /ɪmˈpræktɪkəbl/

impracticable

impraticable
Meaning
Not capable of being carried out or put into practice.
Example
The plan seemed impracticable due to limited resources.
Le plan semblait impraticable en raison des ressources limitées.
C2 adjective /ɪˈnɪmɪkəl/

inimical

hostile / défavorable
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
La politique était défavorable à la croissance économique du pays.
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.
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.
C2 adjective /ɪnˈsɪpɪd/

insipid

insipide
Meaning
lacking flavor, interest, or excitement; dull
Example
The soup was insipid and needed more seasoning.
La soupe était insipide et avait besoin de plus d'assaisonnement.
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.
C2 noun /ˌɪmprəˈsɑːrioʊ/

impresario

impresario
Meaning
A person who organizes or finances concerts, plays, or operas.
Example
The impresario arranged a series of concerts for the rising star.
L'impresario a organisé une série de concerts pour la star montante.
C2 noun /ˈaɪdlər/

idler

fainéant
Meaning
A person who avoids work or spends time lazily.
Example
He was known as an idler who wasted his days.
Il était connu comme un fainéant qui gâchait ses journées.
C2 noun /ˈænʒənuː/

ingenue

jeune innocente
Meaning
an innocent, naïve young woman, especially as represented in literature or theater
Example
She played the role of the ingénue in the play with great charm.
Elle a joué le rôle de la jeune innocente dans la pièce avec beaucoup de charme.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

à l'intérieur de l'institution
Meaning
Occurring within the walls of a single institution, especially a school or college.
Example
The college organizes intramural sports competitions every semester.
Le collège organise des compétitions sportives intramuros chaque semestre.
C2 adjective /ɪnˈkɒntɪnənt/

incontinent

incontinent
Meaning
lacking control over urination or defecation; lacking self-restraint
Example
The patient was incontinent after surgery.
Le patient était incontinent après l'opération.
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

impondérable
Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
Le résultat des élections dépend de nombreux facteurs impondérables.
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.
C2 noun /ˌɪlɪbəˈræləti/

illiberality

intolérance
Meaning
The quality of being illiberal; lack of tolerance or generosity.
Example
The illiberality of the new laws alarmed the citizens.
L'illibéralité des nouvelles lois a alarmé les citoyens.
C2 adjective /ɪmˈpɔːrtʃənət/

importunate

importun
Meaning
Persistent to the point of annoyance or intrusion
Example
The importunate salesman kept calling despite repeated refusals.
Le vendeur importun a continué à appeler malgré les refus répétés.
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.