immodest
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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 /ɪmˌpɜːrˈsweɪdəbl/

impersuadable

impossible à persuader
Meaning
not able to be convinced or persuaded
Example
She remained impersuadable despite all our arguments.
Elle est restée impossible à persuader malgré tous nos arguments.
C2 noun /ɪmˈbroʊlioʊ/

imbroglio

embrouille
Meaning
An extremely confused, complicated, or embarrassing situation.
Example
The political imbroglio lasted for months without resolution.
L'embrouille politique a duré des mois sans résolution.
C2 verb ˈɪnʌndeɪt

inundate

inonder, submerger quelqu'un ou quelque chose avec des choses ou des personnes à traiter
Meaning
To flood; overwhelm someone or something with things or people to be dealt with
Example
The company was inundated with requests after the advertisement.
L'entreprise a été inondée de demandes après la publicité.
C2 adverb /ˈɪntʃmiːl/

inchmeal

petit à petit
Meaning
Gradually, little by little.
Example
The old castle fell inchmeal into ruin.
Le vieux château est tombé petit à petit en ruine.
C2 adjective /ɪnˈklɛmɛnt/

inclement

météo inclemente
Meaning
unpleasantly cold, wet, or stormy (usually weather)
Example
The match was canceled due to inclement weather.
Le match a été annulé à cause du mauvais temps.
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 /ˌɪmpjuˈteɪʃən/

imputation

imputation
Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
Le politicien a nié l'imputation de corruption.
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 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 /ɪnˈeɪliənəbl/

inalienable

inaliénable
Meaning
Unable to be taken away or transferred; absolute and permanent.
Example
Freedom of speech is an inalienable right.
La liberté d'expression est un droit inaliénable.
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.
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.
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.
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 /ˈɪndələnt/

indolent

paresseux
Meaning
Wanting to avoid activity or exertion; lazy.
Example
The indolent cat slept in the sun all afternoon.
Le chat paresseux a dormi au soleil toute l'après-midi.
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.
C2 noun /ɪnˈsɪpiəns/

incipience

début
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
Le projet en était encore à ses débuts lorsque le financement a été approuvé.
C2 noun /ɪmp/

imp

petit diablotin espiègle
Meaning
a small mischievous devil or sprite; a playful troublemaker
Example
The child was acting like a little imp, hiding his toys everywhere.
L'enfant agissait comme un petit diablotin, cachant ses jouets partout.
C2 noun /ˌɪnkənˈɡruːəti/

incongruity

incongruité
Meaning
The state of being inconsistent or out of place.
Example
The incongruity of his cheerful mood during the funeral shocked everyone.
L'incongruité de son humeur joyeuse pendant les funérailles a choqué tout le monde.
C2 adverb /ˌɪnəzˈmʌtʃ/

inasmuch

dans la mesure où
Meaning
To the extent that; considering that.
Example
Inasmuch as you are their teacher, you should guide them carefully.
Dans la mesure où vous êtes leur enseignant, vous devez les guider soigneusement.
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 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 /ɪˈlɪbərəl/

illiberal

illibéral
Meaning
Opposed to liberal principles; restricting freedom of thought or behavior.
Example
The government was criticized for its illiberal policies.
Le gouvernement a été critiqué pour ses politiques illibérales.
C2 verb /ˌɪmpɔːrˈtuːnd/

importuned

demander de manière insistante
Meaning
asked someone persistently and pressingly for something
Example
She importuned her boss for a raise until he finally gave in.
Elle demandait de manière insistante une augmentation à son patron jusqu'à ce qu'il cède enfin.
C2 adjective ˌɪn.ɪ.fɪˈkeɪ.ʃəs

inefficacious

inefficace
Meaning
Not producing any or the desired effect; ineffective.
Example
The treatment was inefficacious in curing the disease.
Le traitement a été inefficace pour guérir la maladie.
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 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 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 noun /ɪnˈsuːsiəns/

insouciance

insouciance
Meaning
Casual lack of concern; indifference.
Example
She carried herself with an air of insouciance, unbothered by the challenges ahead.
Elle marchait avec un air d'insouciance, sans se soucier des défis à venir.
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 adjective /ˌɪnkəmˈprɛsəbl/

incompressible

incompressible
Meaning
Not able to be pressed or squeezed into a smaller space.
Example
Liquids are generally considered incompressible.
Les liquides sont généralement considérés comme incompressibles.
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 /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.
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 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 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 /ˌɪnkænˈteɪʃən/

incantation

incantation
Meaning
a series of words used as a magic spell or charm
Example
The wizard chanted an incantation to summon the spirits.
Le magicien a récité une incantation pour invoquer les esprits.
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 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 /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 /ˌɪmprɪˈmɑːtər/

imprimatur

imprimatur
Meaning
An official license or approval, especially to publish a book.
Example
The book was released with the official imprimatur of the church.
Le livre a été publié avec l'imprimatur officiel de l'église.
C2 noun /ɪmˈpruː.dəns/

Imprudence

imprudence; négligence; témérité
Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
Son imprudence financière a conduit à la faillite en seulement deux ans.
C2 noun /ˈɪndələns/

indolence

indolence
Meaning
Avoidance of activity or exertion; laziness.
Example
His indolence kept him from finishing the project on time.
Son indolence l'a empêché de terminer le projet à temps.
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.
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 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.
C2 noun /ˈɪn.fɪ.del/

Infidel

infidèle
Meaning
a person who does not believe in religion or whose religious beliefs differ from one's own
Example
In historical contexts, crusaders often referred to their enemies as infidels.
Dans des contextes historiques, les croisés se référaient souvent à leurs ennemis comme des infidèles.
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 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.
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.
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 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 /ɪˈnɪkwɪtəs/

iniquitous

iniquité
Meaning
grossly unfair and morally wrong
Example
Slavery was one of the most iniquitous practices in history.
L'esclavage était l'une des pratiques les plus iniquitous de l'histoire.
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 /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 /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 adjective /ɪmˈpruːdənt/

imprudent

imprudent
Meaning
Not showing care for the consequences of an action.
Example
It was imprudent to drive in such stormy weather.
C'était imprudent de conduire par un temps aussi orageux.
C2 adjective /ˌɪnkəmˈbʌstəbl/

incombustible

incombustible
Meaning
Not capable of catching fire or burning.
Example
This material is incombustible and safe for construction.
Ce matériau est incombustible et sûr pour la construction.
C2 adjective /ɪnˈkɒnstənt/

inconstant

inconstant
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
Ses humeurs inconstantes rendaient difficile de travailler avec lui.
C2 adjective /ˈɪn.dɪ.dʒənt/

indigent

indigent
Meaning
lacking the necessities of life due to poverty; very poor
Example
The hospital offers free care to indigent patients.
L'hôpital offre des soins gratuits aux patients indigents.
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 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.
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.
C2 adjective /ˌɪnkænˈdɛsənt/

incandescent

incandescent
Meaning
emitting light as a result of being heated; extremely bright or passionate
Example
The incandescent lamp lit up the entire hall.
La lampe incandescente a éclairé toute la salle.
C2 verb ɪmˈbaɪb

imbibe

absorber, assimiler, boire
Meaning
Absorb or assimilate ideas or knowledge. To drink or take in.
Example
He tried to imbibe the wisdom from his mentor.
Il a essayé d'absorber la sagesse de son mentor.
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 /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 /ˌɪntərˈniːsaɪn/

internecine

conflit interne
Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
Le conflit interne a affaibli l'organisation de l'intérieur
C2 adjective /ˌɪnɪkˈstɛnsəbl/

inextensible

inextensible
Meaning
Not capable of being stretched or extended.
Example
This rope is made of an inextensible material.
Cette corde est faite d’un matériau inextensible.
C2 noun /ɪˈnɪkwɪti/

iniquity

iniquité
Meaning
Immoral or grossly unfair behavior.
Example
The dictator's regime was marked by corruption and iniquity.
Le régime du dictateur était marqué par la corruption et l'iniquité.
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 adjective /ˌɪnsəˈpɔːrtəbl̩/

insupportable

insupportable
Meaning
Too extreme or difficult to be endured.
Example
The heat was insupportable during the long journey.
La chaleur était insupportable pendant le long voyage.
C2 verb /ɪˈluːmɪn/

illumine

illuminer
Meaning
to light up or make clear
Example
The rising sun illumined the mountain peaks.
Le soleil levant illumina les cimes des montagnes.
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 /aɪˈoʊtə/

iota

une quantité infime
Meaning
An extremely small amount.
Example
He did not show an iota of fear.
Il n'a montré même pas une infime quantité de peur.
C2 noun /ˌɪnsjəˈlærəti/

insularity

insularité
Meaning
The state of being isolated or narrow-minded.
Example
The insularity of the group prevented them from accepting new ideas.
L'insularité du groupe l'a empêché d'accepter de nouvelles idées.
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 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 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 /ˈɪmprɛɡneɪt/

impregnate

imprégner / rendre enceinte
Meaning
To make pregnant; to fill or saturate with something.
Example
The scientist used a method to impregnate the material with resin.
Le scientifique a utilisé une méthode pour imprégner le matériau de résine.
C2 noun /ɪmˈpjuːnɪti/

impunity

impunité
Meaning
freedom from punishment or harmful consequences for an action
Example
The dictator ruled with impunity, ignoring international laws.
Le dictateur a régné en toute impunité, ignorant les lois internationales.
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 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 /ˌɪnɔːˈspɪʃəs/

Inauspicious

néfaste
Meaning
unlucky; showing signs that future success is unlikely; unfavorable
Example
The dark clouds seemed inauspicious for the wedding.
Les nuages sombres semblaient néfastes pour le mariage.
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 /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 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 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 /ˈɪnˌbrɛd/

inbred

inné
Meaning
existing naturally in a person or animal; also related to reproduction within a limited community
Example
He has an inbred sense of loyalty.
Il a un sens inné de la loyauté.
C2 noun /ˌɪkθiˈɒlədʒi/

ichthyology

ichtyologie
Meaning
The branch of zoology that deals with fish.
Example
He pursued a degree in ichthyology at the university.
Il a poursuivi un diplôme en ichtyologie à l'université.
C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

se produisant à intervalles de temps égaux
Meaning
Occurring at equal time intervals; in unison or synchrony.
Example
The pendulum swings are isochronous, repeating at equal intervals.
Les balancements du pendule sont isochrones, se répétant à intervalles égaux.
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 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 verb /ɪnˈdɛmnɪfaɪ/

indemnify

indemniser
Meaning
to compensate someone for harm or loss; to secure against future damage or cost
Example
The insurance company agreed to indemnify the client for the damages.
La compagnie d'assurance a accepté d'indemniser le client pour les dommages.
C2 adjective /ˌɪnsəˈluːbriəs/

insalubrious

insalubre
Meaning
Unhealthy or not conducive to well-being.
Example
They moved out of the insalubrious neighborhood for the sake of their health.
Ils ont déménagé du quartier insalubre pour leur santé
C2 noun /ˈɪd.i.ə.si/

Idiocy

idiotie
Meaning
extremely stupid behavior or actions; foolishness
Example
The decision to ignore safety protocols was pure idiocy that endangered everyone.
La décision d'ignorer les protocoles de sécurité était une pure idiotie qui mettait tout le monde en danger.
C2 verb /ˌɪnkəˈpæsɪteɪt/

incapacitate

incapaciter
Meaning
to deprive someone or something of the ability or strength to function
Example
The severe injury incapacitated the player for the rest of the season.
La blessure grave a rendu le joueur incapable pour le reste de la saison.
C2 noun /ˈɪsməs/ or /ˈɪsθməs/

isthmus

isthme
Meaning
A narrow strip of land connecting two larger land areas, often with water on either side.
Example
The Panama Canal cuts through the Isthmus of Panama.
Le canal de Panama traverse l'isthme de Panama.
C2 adjective /ˌɪnkəˈməʊdiəs/

incommodious

incommode
Meaning
Uncomfortably small, cramped, or inconvenient.
Example
We had to stay in an incommodious room during the trip.
Nous avons dû rester dans une chambre inconfortable pendant le voyage.
C2 adjective /ɪnˈsuːsiənt/

insouciant

insouciant
Meaning
Showing a casual lack of concern; carefree.
Example
He gave an insouciant shrug and walked away.
Il a haussé les épaules de manière insouciante et est parti.
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.
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.
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 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 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

indiscernable
Meaning
Impossible or difficult to see, notice, or distinguish.
Example
The difference between the two shades was almost indiscernible.
La différence entre les deux teintes était presque indiscernable.
C2 verb /ˈɪmprɪkeɪt/

imprecate

imprécation
Meaning
To utter a curse or invoke evil upon someone.
Example
The old woman imprecated her enemies with dark words.
La vieille femme a impréqué ses ennemis avec des mots sombres.
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.
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 /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.
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.
C2 adjective /ˌɪrɛvəˈrɛnʃəl/

irreverential

irrévérencieux
Meaning
Showing a lack of respect for things that are generally taken seriously.
Example
His irreverential humor often shocked traditional audiences.
Son humour irrévérencieux choquait souvent les spectateurs traditionnels.
C2 noun /ˌɪnkrʌˈsteɪʃən/

incrustation

croûte
Meaning
a crust or hard coating formed on the surface of something
Example
The old pipes were blocked due to heavy incrustation of minerals.
Les vieilles tuyauteries étaient bloquées en raison d'une incrustation importante de minéraux.
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.
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 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

irréductible
Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
La fraction 3/7 est irréductible.
C2 verb /ɪnˈsteɪt/

instate

installer
Meaning
To set up in position, office, or authority.
Example
The board decided to instate her as the new director.
Le conseil a décidé de l'instaurer en tant que nouveau directeur.
C2 noun /ˌɪn.trəˈɡreʃ.ən/

introgression

introgression génétique
Meaning
The transfer of genetic information from one species to another through repeated backcrossing.
Example
Introgression plays a significant role in plant breeding.
L'introgression joue un rôle important dans la reproduction des plantes.
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.
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 /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.