industriousness
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C1 noun /ɪnˈdʌstriəsnəs/

industriousness

diligence
Meaning
The quality of being hardworking and diligent.
Example
His industriousness earned him a promotion at work.
Sa diligence lui a valu une promotion au travail.
C1 adjective /ɪmˈpɜːrsənl/

impersonal

impersonnel
Meaning
not influenced by, showing, or involving personal feelings; lacking human warmth or emotion
Example
The letter was written in a very impersonal style.
La lettre a été écrite dans un style très impersonnel.
B2 adjective /ɪnˈækjərət/

Inaccurate

incorrect; erroné; faux
Meaning
not correct; containing errors; wrong
Example
The weather forecast was inaccurate yesterday.
La prévision météorologique était incorrecte hier.
B2 adjective /ɪˈmædʒ.ɪ.nər.i/

Imaginary

imaginaire; fictif; irréel
Meaning
existing only in imagination; not real; fictional
Example
The child had an imaginary friend who she talked to every day.
L'enfant avait un ami imaginaire avec lequel elle parlait tous les jours.
B2 verb /ɪnˈdʌldʒ/

indulge

se livrer
Meaning
to allow oneself to enjoy something enjoyable, often excessively
Example
He indulged in a piece of chocolate cake after dinner.
Il s'est adonné à un morceau de gâteau au chocolat après le dîner.
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.
B1 adjective /ˈɪnər/

inner

intérieur
Meaning
Located inside or closer to the center; relating to one’s thoughts or feelings.
Example
She shared her inner thoughts with her best friend.
Elle a partagé ses pensées intérieures avec sa meilleure amie.
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.
A2 noun /ˈaɪtəm/

item

élément
Meaning
A single thing, object, or unit, often part of a list or collection.
Example
Each item on the list must be checked carefully.
Chaque élément de la liste doit être vérifié attentivement.
C1 noun /ˈɪnkwest/

inquest

enquête
Meaning
A legal or official inquiry, especially into the cause of a death.
Example
The inquest revealed the cause of the accident.
L'enquête a révélé la cause de l'accident.
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.
A2 adjective /ɪnˈtɛlɪdʒənt/

intelligent

intelligent
Meaning
Having or showing high mental capacity, quick to learn and understand.
Example
She is one of the most intelligent students in the class.
Elle est l'une des étudiantes les plus intelligentes de la classe.
C1 verb /ɪmˈpiːtʃ/

impeach

destituer
Meaning
To charge a public official with misconduct while in office.
Example
The parliament voted to impeach the president.
Le parlement a voté pour destituer le président.
C1 noun /ˌɪnklɪˈneɪʃən/

inclination

inclination
Meaning
A natural tendency or urge to act or feel in a particular way.
Example
She has an inclination towards helping others.
Elle a une inclination à aider les autres.
C1 verb ɪmˈbjuː

Imbue

Mélanger une idée ou un sentiment profondément dans l'esprit de quelqu'un
Meaning
Mixing some idea or feeling deeply into someone's mind
Example
The teacher tried to imbue students with a love for learning.
L'enseignant a essayé d'inculquer aux élèves un amour de l'apprentissage.
B2 verb ɪnˈvɛst.ɪŋ

investing

investir
Meaning
The act of putting money into financial schemes, shares, property, or a commercial venture with the expectation of achieving a profit.
Example
Investing in stocks can generate long-term wealth.
Investir dans des actions peut générer de la richesse à long terme.
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 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 /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 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.
C1 noun /ˌɪn.trəˈspek.ʃən/

introspection

introspection
Meaning
The examination or observation of one's own mental and emotional processes; self-reflection.
Example
Through introspection, she gained insight into her emotions.
Grâce à l'introspection, elle a acquis une profonde compréhension de ses émotions.
B2 noun /ɪnˈtɛnt/

intent

intention
Meaning
the purpose or reason behind an action; a strong determination to do something
Example
Her intent was to improve the quality of education in the community.
Son intention était d'améliorer la qualité de l'éducation dans la communauté.
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.
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 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.
C1 adjective ˌɪn.krəˈmen.təl

incremental

incrémental
Meaning
Relating to or denoting an increase or addition, especially one of a series on a fixed scale; proceeding in small stages.
Example
Incremental changes ensure sustainability.
Les changements incrémentaux assurent la durabilité.
B1 adjective /ɪˈnɪʃəl/

initial

initial
Meaning
Existing or occurring at the beginning.
Example
Her initial reaction was one of surprise.
Sa réaction initiale fut une surprise.
C1 adjective /ɪˈnɔːrdənət/

inordinate

excessif
Meaning
Excessive or unusually large in degree.
Example
She spent an inordinate amount of time on her phone.
Elle a passé un temps excessif sur son téléphone.
B1 noun /ˈɪnstrəmənt/

instrument

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

indigestion

indigestion
Meaning
Discomfort or pain in the stomach associated with difficulty in digesting food.
Example
He avoided spicy food because it often gave him indigestion.
Il evitait les aliments epices car cela lui donnait souvent une indigestion.
C1 noun/verb /ˈɪnsɛns/

incense

encens / irriter
Meaning
a substance burned for its sweet smell (noun); to make very angry (verb)
Example
The smell of incense filled the temple, but his rude words incensed her.
L'odeur de l'encens remplissait le temple, mais ses mots impolis l'ont mise en colère.
C1 noun /ɪmˈpɜː.mə.nəns/

impermanence

impermanence
Meaning
The state or fact of lasting for only a limited period of time.
Example
The philosophy of Buddhism emphasizes the impermanence of life.
La philosophie bouddhiste met l'accent sur l'impermanence de la vie.
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.
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

Idéalisme
Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
Son idéalisme juvénile l'a motivé à rejoindre divers mouvements de justice sociale.
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.
A2 verb /ɪnˈvaɪtɪd/

invited

invité
Meaning
asked someone formally or politely to go somewhere or do something
Example
She was invited to the party.
Elle a été invitée à la fête.
C1 adjective /ɪnˈdʌstriəs/

industrious

travailleur
Meaning
Hardworking and diligent in one's duties.
Example
She is an industrious student who always completes her assignments on time.
Elle est une étudiante travailleuse qui termine toujours ses devoirs à temps.
C1 verb /ɪmˈbɛd/

imbed

enfoncer
Meaning
To fix firmly or deeply in a surrounding mass.
Example
The journalist imbedded himself with the troops to report firsthand.
Le journaliste s'est enfoncé dans les troupes pour rapporter de première main.
C1 noun /ˌɪn.dɪˈsɪʒ.ən/

Indecision

indécision; hésitation; doute
Meaning
the inability to make decisions quickly; uncertainty about what to do
Example
Her indecision about which job offer to accept caused her to miss both opportunities.
Son indécision sur quelle offre d'emploi accepter l'a conduite à manquer les deux opportunités.
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 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.
B2 adjective /ˈɪnfɪnɪt/

infinite

infini
Meaning
limitless or endless in space, extent, or number
Example
The universe is often described as infinite.
L'univers est souvent décrit comme infini.
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.
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.
B2 adjective /ɪˈlɪt.ər.ət/

Illiterate

analphabète; illettré; ignorants
Meaning
unable to read or write; lacking education
Example
The program aims to help illiterate adults learn to read and write.
Le programme vise à aider les adultes illettrés à apprendre à lire et à écrire.
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

intuitif
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
Le logiciel a un design intuitif qui le rend facile à utiliser.
B2 adjective /ˌɪnkənˈsɪstənt/

inconsistent

incohérent
Meaning
Not staying the same throughout; lacking harmony or regularity.
Example
His answers were inconsistent and confusing.
Ses réponses étaient incohérentes et confuses.
B2 noun /aɪˈdiː/

id

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

inventory

inventaire
Meaning
A complete list of items, such as goods in stock or property.
Example
The shopkeeper checked the inventory before opening the store.
Le commerçant a vérifié l'inventaire avant d'ouvrir le magasin.
B2 noun ɪnˈfleɪʃən

inflation

inflation
Meaning
A general increase in prices and fall in the purchasing value of money.
Example
Inflation erodes the purchasing power of consumers.
L'inflation érode le pouvoir d'achat des consommateurs.
C1 noun /ɪnˈdaɪtmənt/

indictment

acte d'accusation
Meaning
a formal charge or accusation of a serious crime
Example
The indictment accused the company of multiple violations.
L'acte d'accusation a accusé l'entreprise de multiples violations.
C1 adjective /aɪˈdɪlɪk/

idyllic

idyllique et magnifique
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
Ils ont apprécié des vacances idylliques au bord de la mer.
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 verb /ɪmˈbruː/

imbrue

tacher
Meaning
To stain, especially with blood.
Example
His hands were imbrued with blood after the battle.
Ses mains étaient tachetées de sang après la bataille.
B2 noun /ɪˈluː.ʒən/

Illusion

illusion
Meaning
a thing that is or is likely to be wrongly perceived or interpreted; a false idea or belief
Example
The magician created a spectacular illusion that made the elephant appear to vanish.
Le magicien a créé une illusion spectaculaire qui a fait apparaître l'éléphant disparaître.
C1 adjective /ɪnˈkɒmpɪtənt/

incompetent

incompétent
Meaning
Lacking the necessary ability or skills to do something successfully.
Example
He was fired because he was incompetent at his job.
Il a été licencié parce qu'il était incompétent dans son travail.
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 adjective /ɪnˈdɪɡnənt/

indignant

indigné
Meaning
Feeling or showing anger at something considered unfair or unjust.
Example
She was indignant when accused of cheating.
Elle était indignée lorsqu'elle a été accusée de tricher.
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 /ˌɪnkəˈpæsəti/

incapacity

incapacité
Meaning
the lack of ability, power, or fitness to do something
Example
His mental incapacity prevented him from making important decisions.
Son incapacité mentale l'a empêché de prendre des décisions importantes.
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.
B2 adjective /aɪˈrɒnɪkəl/

ironical

ironique
Meaning
expressing irony; having the nature of irony
Example
Her ironical tone made everyone uncomfortable.
Son ton ironique a mis tout le monde mal à l'aise.
B2 adjective /ˌɪnsəˈfɪʃənt/

insufficient

insuffisant
Meaning
Not enough; inadequate.
Example
His explanation was insufficient to clear the confusion.
Son explication était insuffisante pour clarifier la confusion.
C1 verb /ɪnˈkɜːr/

incur

encourir
Meaning
To bring upon oneself something undesirable, usually as a result of actions.
Example
He incurred a fine for parking in the wrong place.
Il a encouru une amende pour avoir garé sa voiture au mauvais endroit.
B2 verb /ɪnˈtriːɡ/

intrigue

intriguer
Meaning
to arouse curiosity or interest; to make someone fascinated
Example
The mystery novel will intrigue any reader.
Le roman mystère intriguerait n'importe quel lecteur.
C1 adjective /ɪnˈsɛnsəbl/

insensible

insensible
Meaning
Unconscious; unaware of or indifferent to something.
Example
He was insensible to the cold as he lay in the snow.
Il était insensible au froid lorsqu'il était allongé dans la neige.
C1 adjective /ɪˈlɪsɪt/

illicit

illicite
Meaning
Forbidden by law, rules, or custom.
Example
The police shut down the illicit drug operation.
La police a fermé l'opération de drogue illicite.
B2 noun, verb /ɪntʃ/

inch

pouce / se déplacer lentement
Meaning
A unit of length equal to 2.54 centimeters; or to move slowly and carefully in small amounts.
Example
She inched closer to the edge of the stage.
Elle s'est lentement rapprochée du bord de la scène.
A1 preposition/adverb/adjective/noun /ˌɪnˈsaɪd/

inside

bonheur
Meaning
Situated within something; the inner part of something.
Example
She waited inside the house until the rain stopped.
Elle ne pouvait pas cacher son bonheur quand elle a reçu le prix.
B2 adjective /ˈaɪ.dəl/

Idle

paresseux; inactif; ne travaillant pas
Meaning
lazy; inactive; not working or being used
Example
The factory workers were idle during the strike.
Les ouvriers de l'usine étaient inactifs pendant la grève.
C2 adverb /ˈaɪsɪli/

icily

glacialement
Meaning
In a very cold, unfriendly, or hostile manner.
Example
She replied icily to his question.
Elle a répondu glaciellement à sa question.
B2 noun ˌɪm.plɪˈkeɪ.ʃən

implication

implication
Meaning
A conclusion that can be drawn from something although it is not explicitly stated; a likely consequence.
Example
The implication of climate change is severe.
L'implication du changement climatique est grave.
B2 verb /ɪnˈtɜːrprət/

interpret

interpréter / traduire
Meaning
to explain the meaning of something; to translate orally
Example
She had to interpret the speech for the foreign guests.
Elle a dû interpréter le discours pour les invités étrangers.
A2 verb /ˌɪntrəˈduːs/

introduce

présenter
Meaning
to present someone; to bring in for the first time
Example
Let me introduce you to my friend.
Laisse-moi te présenter à mon ami.
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.
C1 adjective ˌɪn.təˈdɪs.ɪ.plɪ.nər.i

interdisciplinary

interdisciplinaire
Meaning
Relating to more than one branch of knowledge.
Example
The interdisciplinary approach in education enhances problem-solving skills.
L'approche interdisciplinaire en éducation améliore les compétences en résolution de problèmes.
B2 noun /ɪnˈkwaɪəri/ or /ˈɪnkwəri/

inquiry

enquête / demande d'information
Meaning
An act of asking for information; an investigation into something.
Example
The committee launched an inquiry into the financial irregularities.
Le comité a lancé une enquête sur les irrégularités financières.
A2 verb /ɪɡˈnɔːr/

ignore

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

inter

enterrer
Meaning
To bury a dead body in the ground.
Example
They decided to inter the soldier with full honors.
Ils ont décidé d'enterrer le soldat avec tous les honneurs.
B1 noun /ˈɪn.flu.əns/

Influence

influence; pouvoir
Meaning
the capacity to have an effect on the character, development, or behavior of someone or something
Example
The teacher's positive influence helped the student overcome his learning difficulties.
L'influence positive du professeur a aidé l'élève à surmonter ses difficultés d'apprentissage.
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 /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.
C1 adjective ɪnˈdʒiː.ni.əs

ingenious

ingénieux
Meaning
Showing inventiveness and skill; clever, original, and inventive.
Example
His ingenious ideas transformed modern physics.
Ses idées ingénieuses ont transformé la physique moderne.
B2 noun /ˈaɪ.dəl/

Idol

idole; personne admirée
Meaning
an image or representation of a god used as an object of worship; a person who is greatly admired
Example
The singer became a teenage idol after her hit song topped the charts worldwide.
La chanteuse est devenue une idole adolescente après que sa chanson à succès ait atteint le sommet des classements mondiaux.
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.
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.
A1 pronoun /aɪ/

i

je
Meaning
used by a speaker to refer to himself or herself
Example
I am learning English every day.
Je suis en train d'apprendre l'anglais tous les jours.
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.
C1 verb /ɪnˈhɪbɪt/

inhibit

inhiber
Meaning
to prevent or restrain someone or something from acting freely; to hinder
Example
Fear can inhibit personal growth.
La peur peut inhiber la croissance personnelle.
C2 noun /ɪnˈfriːkwəns/

infrequence

infréquence
Meaning
The state of occurring rarely or at long intervals.
Example
The infrequence of their meetings made it hard to maintain close ties.
L'infréquence de leurs réunions rendait difficile le maintien de liens étroits.
B2 adjective ˈɪn.tɪ.ɡreɪ.tɪd

integrated

intégré
Meaning
Combining or coordinating separate elements so as to provide a harmonious, interrelated whole.
Example
Integrated systems optimize efficiency.
Les systèmes intégrés optimisent l'efficacité.
C2 adjective /ˈɪm.pi.əs/

Impious

impie; blasphématoire
Meaning
irreligious; lacking reverence for religion; blasphemous
Example
The impious act shocked the religious community.
L'acte impie a choqué la communauté religieuse.
B2 noun /ɪmˈpeɪʃəns/

impatience

impatience
Meaning
The state of being quickly irritated or unable to wait calmly.
Example
His impatience grew as the meeting dragged on.
Son impatience grandissait à mesure que la réunion s'éternisait.
A2 noun /ˈɪn.sekt/

Insect

insecte
Meaning
a small invertebrate animal with six legs and usually one or two pairs of wings
Example
The butterfly is a beautiful insect that flies from flower to flower.
Le papillon est un bel insecte qui vole de fleur en fleur.
B2 noun ɪnˈsɛntɪvz

incentives

incitations, incitatifs
Meaning
Things that motivate or encourage one to do something.
Example
Tax incentives are used to encourage investment in renewable energy.
Les incitations fiscales sont utilisées pour encourager les investissements dans l'énergie renouvelable.
C1 noun /ɪnˈfɜːməri/

infirmary

infirmerie
Meaning
A hospital or place where the sick or injured are cared for.
Example
The school had an infirmary for minor injuries.
L'école avait une infirmerie pour les blessures mineures.
B1 adjective /ɪnˈkrɛdəbl/

incredible

incroyable
Meaning
so extraordinary that it is hard to believe; amazing
Example
The view from the mountain was incredible.
La vue depuis la montagne était incroyable.
C1 adjective /ˌɪndɪˈfɛnsəbl̩/

indefensible

indéfendable
Meaning
not able to be protected or justified
Example
The minister’s remarks were considered indefensible by the public.
Les remarques du ministre ont été jugées indéfendables par le public.
C1 adjective /ɪˈnɔːɡjərəl/

Inaugural

inaugural
Meaning
marking the beginning of something; first; opening
Example
The president delivered his inaugural speech.
Le président a prononcé son discours inaugural.
C1 noun /ɪmˌpɜː.sənˈeɪ.ʃən/

impersonation

usurpation d'identité
Meaning
The action of pretending to be another person for the purpose of entertainment or fraud.
Example
Online impersonation is a serious cybercrime.
L'usurpation d'identité en ligne est un crime informatique grave.
C1 noun /ɪnˈfɜːrnoʊ/

inferno

incendie
Meaning
a large, intense fire that is dangerously out of control
Example
The building turned into an inferno within minutes.
Le bâtiment s'est transformé en un incendie en quelques minutes.
B2 adjective /aɪˈdentɪkəl/

Identical

identique; exactement pareil
Meaning
exactly the same; not different in any way
Example
The twins look completely identical to each other.
Les jumeaux se ressemblent complètement identiques.
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.
C1 adjective /ˈɪnərmoʊst/

Innermost

le plus profond; le plus personnel
Meaning
most private and secret; deepest; most personal
Example
She shared her innermost feelings with her closest friend.
Elle a partagé ses sentiments les plus profonds avec son ami le plus proche.
B2 adjective /ɪˈrɪˌspɑn.sə.bəl/

Irresponsible

irresponsable
Meaning
lacking a sense of responsibility; careless
Example
It was irresponsible of him to leave without telling anyone.
C'était irresponsable de sa part de partir sans prévenir personne.
C1 noun /ɪmˈpɛdɪmənt/

impediments

obstacles
Meaning
A hindrance or obstruction in doing something; things that prevent progress or achievement.
Example
Economic impediments often hinder social development.
Les obstacles économiques entravent souvent le développement social.
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.
C1 verb /ɪnˈstɪl/

instill

instiller
Meaning
to gradually but firmly establish an idea, attitude, or habit in someone's mind
Example
Parents try to instill good values in their children.
Les parents essaient d'inculquer de bonnes valeurs à leurs enfants.
C1 verb /ɪnˈvɪɡ.ər.eɪt/

invigorate

revigorer
Meaning
To give strength or energy to someone or something.
Example
A morning walk can invigorate both body and mind.
Une promenade matinale peut revigorer le corps et l'esprit.
C2 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.
B2 adjective ɪˈmɜː.sɪv

immersive

immersif
Meaning
Providing, involving, or characterized by deep absorption or immersion in something.
Example
Virtual reality creates an immersive learning environment.
La réalité virtuelle crée un environnement d'apprentissage immersif.
C1 adjective /ˌɪnɔːrˈɡænɪk/

inorganic

inorganique
Meaning
relating to substances that are not derived from living organisms; lacking organic structure or growth
Example
Inorganic compounds are commonly studied in chemistry labs.
Les composés inorganiques sont courants en chimie.
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.
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 /ɪnˈspɛktər/

inspector

inspecteur
Meaning
An official employed to ensure regulations are obeyed or standards are met.
Example
The inspector carefully checked the restaurant's kitchen for hygiene standards.
L'inspecteur a soigneusement vérifié la cuisine du restaurant pour les normes d'hygiène.
C1 adjective /ɪnˈtrɛpɪd/

intrepid

intrépide
Meaning
fearless and adventurous, often used humorously
Example
The intrepid traveler explored the jungle alone.
Le voyageur intrépide a exploré la jungle seul.
C1 adjective /ɪˈnɜːrt/

inert

inactif
Meaning
lacking the ability or strength to move or act; chemically inactive
Example
The patient remained inert on the bed.
Le patient est resté inactif sur le lit.
C1 noun ˌɪn.tuˈɪʃ.ən

intuition

intuition
Meaning
The ability to understand something immediately, without the need for conscious reasoning.
Example
Her intuition told her something was wrong.
Son intuition lui a dit que quelque chose n’allait pas.
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.
C1 adjective /ˌɪntərˈtʃeɪndʒəbl/

interchangeable

interchangeable
Meaning
able to be exchanged with each other without difference or loss of function
Example
These machine parts are interchangeable, so they can be replaced easily.
Ces pièces de machine sont interchangeables, elles peuvent donc être remplacées facilement.
C1 verb /ˈaɪdəlaɪz/

idolize

idolâtrer
Meaning
To admire or worship someone excessively.
Example
Fans often idolize celebrities for their talent and lifestyle.
Les fans idolâtrent souvent les célébrités pour leur talent et leur mode de vie.