inchmeal
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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 /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 /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 /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 /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 /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 /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 /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 /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 /ɪnˈæpt/

Inapt

inapproprié; inapte
Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
Son commentaire était inapproprié pour la réunion formelle.
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 /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 noun /ˌɪnkænˈdɛsəns/

incandescence

incandescence
Meaning
the emission of light from a hot object; brilliance
Example
The incandescence of the candle filled the dark room.
L'incandescence de la bougie remplit la pièce sombre.
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 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 /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 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 noun /ˌɪntərpəˈzɪʃən/

interposition

intervention
Meaning
The act of intervening or coming between two things, often to influence or prevent an outcome.
Example
The manager’s interposition prevented a heated argument from escalating.
L'intervention du manager a empêché une dispute animée de s'intensifier.
C2 noun /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 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 /ɪnˈdɒktrɪˌneɪt/

indoctrinate

endoctriner
Meaning
To teach someone to fully accept a set of beliefs or ideas without question.
Example
The regime tried to indoctrinate the youth with propaganda.
Le régime a tenté d'endoctriner la jeunesse avec de la propagande.
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 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 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.
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 /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 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 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 /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 /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 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 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 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 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 noun /ˌɪmprɪˈkeɪʃən/

imprecation

malédiction
Meaning
A spoken curse or expression of strong condemnation.
Example
The angry crowd hurled imprecations at the corrupt official.
La foule en colère a lancé des malédictions à l'officiel corrompu.
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 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 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 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 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 /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 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 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 /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 /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 /ˌɪn.ʌnˈdeɪ.ʃən/

inundation

inondation
Meaning
The act of flooding or overwhelming with water or things.
Example
The town suffered from a severe inundation after the heavy rains.
La ville a souffert d'une grave inondation après les fortes pluies.
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 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 /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 /ɪˈrʌp.ʃən/

Irruption

une entrée violente soudaine; une invasion ou une incursion; une explosion ou une éruption soudaine
Meaning
a sudden violent entry; an invasion or raid; a sudden outburst or eruption
Example
The army's irruption into enemy territory caught the opposing forces completely off guard.
L'irruption de l'armée dans le territoire ennemi a pris les forces adverses complètement au dépourvu.
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 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 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 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 /ɪˈreɪdieɪt/

irradiate

irradier
Meaning
to shine light on something; to expose to radiation; to illuminate or brighten
Example
The scientist used a lamp to irradiate the sample.
Le scientifique a utilisé une lampe pour irradier l'échantillon.
C2 adjective /ɪnˈkɒrɪdʒəbəl/

incorrigible

incorrigible
Meaning
incapable of being corrected, improved, or reformed
Example
He is an incorrigible optimist who never loses hope.
C'est un optimiste incorrigible qui ne perd jamais espoir.
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 /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 /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 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 /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 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 /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 /ɪmˈprɛɡnəbl̩/

impregnable

imprenable
Meaning
Unable to be captured, broken into, or defeated.
Example
The fortress was considered impregnable by the enemy.
La forteresse était considérée comme imprenable par l'ennemi.
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 adjective /ɪnˈdʒɛnjuəs/

ingenuous

ingénu
Meaning
Innocent, naive, and unsuspecting; showing childlike simplicity and sincerity.
Example
Her ingenuous smile revealed her genuine kindness.
Son sourire ingénu révélait sa véritable gentillesse.
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 /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 noun /ˈɪnfəmi/

infamy

bonheur
Meaning
the state of being well known for some bad quality or deed
Example
His name will live in infamy for the crimes he committed.
Elle n'a pas pu cacher son bonheur lorsqu'elle a reçu le prix.
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 /ˌɪnvəˈkeɪʃən/

invocation

invocation
Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
La cérémonie a commencé par une invocation aux dieux.
C2 conjunction /ˌɪnəzˈmʌtʃ æz/

inasmuch-as

puisque
Meaning
Because; since.
Example
He cannot attend, inasmuch as he is unwell.
Il ne peut pas assister, puisque qu'il est malade.
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 /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.
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 /ɪnˈvɛstɪtʃər/

investiture

cérémonie d'investiture
Meaning
the formal ceremony of conferring authority, rank, or office
Example
The king held an investiture ceremony for the new knight.
Le roi a organisé une cérémonie d'investiture pour le nouveau chevalier.
C2 adjective /ˈɪl bred/

Ill-bred

mal eleve
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
His ill-bred behavior shocked everyone at the dinner party.
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 adjective /ˌɪnɪkˈstrɪkəbl/

inextricable

inextricable
Meaning
Impossible to separate or escape from.
Example
The two friends shared an inextricable bond.
Les deux amis partageaient un lien inextricable.
C2 adjective /ɪnˈsɛnseɪt/

insensate

insensible
Meaning
lacking physical sensation or empathy; without feeling or sensitivity
Example
The dictator's insensate cruelty shocked the world.
La cruauté insensible du dictateur a choqué le monde.
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 /ˈɪkθiəˌsɔːrz/

ichthyosaurs

ichtyosaures (un type de reptile marin éteint)
Meaning
Extinct marine reptiles that resembled fish and dolphins, dominant during the Mesozoic era.
Example
Ichthyosaurs were swift predators of the ancient seas.
Les ichtyosaures étaient des prédateurs rapides des mers anciennes.
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 /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 noun /ɪnˈɡrætɪˌtjuːd/

ingratitude

ingratitude
Meaning
Lack of gratitude; failure to show thanks or appreciation.
Example
His ingratitude hurt her feelings after all she had done for him.
Son ingratitude lui a fait mal après tout ce qu'elle avait fait pour lui.
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 /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 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

indomptable
Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
Son esprit indomptable l'a aidée à surmonter l'adversité.
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 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 /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 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 /ˌɪn.trəˈsɛl.jʊ.lər/

intracellular

à l'intérieur de la cellule
Meaning
Located or occurring within a cell.
Example
The drug works by targeting intracellular bacteria.
Le médicament agit en ciblant les bactéries intracellulaires.
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 /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 /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 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 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 /ɪˌledʒ.əˈbɪl.ə.ti/

Illegibility

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

infatuate

fasciner
Meaning
to inspire with an intense but short-lived passion or admiration
Example
He was infatuated with her beauty.
Il était fasciné par sa beauté.
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 adjective /aɪˈdɒlətrəs/

idolatrous

idolatrique
Meaning
Excessively admiring or worshipping someone or something as an idol.
Example
The king was criticized for his idolatrous devotion to wealth.
Le roi a été critiqué pour sa dévotion idolâtrique à la richesse.
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 /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.
C2 adjective ˌɪm.pəˈtɜː.bə.bəl

imperturbable

imperturbable
Meaning
Unable to be upset or excited; not easily disturbed.
Example
His imperturbable nature made him a great leader.
Sa nature imperturbable faisait de lui un grand leader.
C2 noun /ˌɪn.ɪˈbraɪ.ə.ti/

inebriety

ivresse
Meaning
the state of being drunk or intoxicated
Example
His frequent inebriety led to the loss of his job.
Son inconstance dans l'ivresse l'a conduit à perdre son travail.
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 /ˌɪntərˈsiːd/

intercede

intercéder
Meaning
to act or plead on behalf of someone in difficulty or trouble; to intervene between parties to help resolve a dispute
Example
She interceded with the teacher to give her brother another chance.
Elle a intercédé auprès du professeur pour donner une autre chance à son frère.
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 /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 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 noun /ˈɪrɪtənsi/

irritancy

irritation
Meaning
the quality or state of causing irritation; legal or formal invalidation
Example
The constant noise became an irritancy to the neighbors.
Le bruit constant est devenu une irritation pour les voisins.
C2 noun /ɪnˈɛrənsi/

inerrancy

inerrance
Meaning
the belief or quality of being free from error; absolute correctness
Example
Some religious groups strongly affirm the inerrancy of their sacred texts.
Certains groupes religieux affirment fermement l'inerrance de leurs textes sacrés.
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 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 /ɪˈmɒdərət/

immoderate

immodéré
Meaning
excessive; beyond reasonable limits
Example
He has an immoderate love for sweets.
Il a un amour immodéré pour les bonbons.