inflection
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN Anglais BN Bengali HI Hindi ES Espagnol FR Français DE Allemand RU Russe ZH Chinois JA Japonais
All Vocabulary Cards All Vocabularies
C1 noun ɪnˈflɛk.ʃən

inflection

inflexion
Meaning
The change in pitch or tone of voice when speaking for emphasis.
Example
His inflection kept the audience engaged.
Son inflexion a captivé le public.
C1 adjective /ɪnˈtɛlɪdʒəbl/

intelligible

intelligible
Meaning
Able to be understood; clear enough to be comprehended.
Example
Her speech was barely intelligible over the noise.
Son discours était à peine intelligible à cause du bruit.
C1 adjective /ˌɪnsərˈmaʊntəbl/

insurmountable

insurmontable
Meaning
Too great to be overcome.
Example
The explorers faced insurmountable odds in the desert.
Les explorateurs ont fait face à des obstacles insurmontables dans le désert.
C1 adjective /ɪˈmækjələt/

immaculate

immaculé
Meaning
perfectly clean, neat, or free from flaws
Example
Her room was immaculate, with everything in its place.
Sa chambre était immaculée, tout était à sa place.
C1 adjective /ˌɪlɪˈdʒɪtɪmət/

illegitimate

illégitime
Meaning
Not authorized by law, rules, or standards; not recognized as valid.
Example
The court ruled the contract to be illegitimate.
Le tribunal a jugé que le contrat était illégitime.
C1 verb /ɪmˈpɒvərɪʃ/

impoverish

appauvrir
Meaning
To make someone poor or reduce the quality or richness of something.
Example
The long war impoverished the entire nation.
La longue guerre a appauvri toute la nation.
C1 adjective /ɪnˈdefɪnət/

Indefinite

indéfini
Meaning
not clearly defined; uncertain; vague; unlimited in time
Example
The meeting has been postponed for an indefinite period.
La réunion a été reportée pour une période indéfinie.
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 ɪnˈsɒl.vən.si

insolvency

insolvabilité
Meaning
The state of being unable to pay debts owed; bankruptcy.
Example
The company declared insolvency after years of losses.
L'entreprise a déclaré la faillite après des années de pertes.
C1 adjective /ɪˈmeʒərəbəl/

Immeasurable

incommensurable
Meaning
too large or extensive to measure; boundless
Example
The immeasurable love of a mother knows no bounds.
L'amour incommensurable d'une mère ne connaît aucune limite.
C1 adjective /ɪmˈpɜːrviəs/

impervious

imperméable
Meaning
Not allowing fluid to pass through; unable to be affected by something.
Example
The jacket is impervious to rain.
La veste est imperméable à la pluie.
C1 adjective /ˌɪnkəʊˈhɪərənt/

incoherent

incohérent
Meaning
Not clear or easy to understand; lacking logical connection.
Example
His explanation was so incoherent that nobody could follow it.
Son explication était tellement incohérente que personne ne pouvait la suivre.
C1 noun /ˌɪnsəˈfɪʃənsi/

insufficiency

insuffisance
Meaning
The state of not being enough or not being adequate.
Example
The project failed due to the insufficiency of funds.
Le projet a échoué en raison de l'insuffisance des fonds.
C1 adjective /ɪnˈfriːkwənt/

infrequent

peu fréquent
Meaning
Happening rarely or not often.
Example
He made infrequent visits to his hometown after moving abroad.
Il faisait des visites peu fréquentes dans sa ville natale après avoir déménagé à l'étranger.
C1 adjective ˈɪn.tər.ɪm

interim

intérimaire
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
Les gouvernements intérimaires gèrent les phases de transition.
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 adjective /ɪˈrɛvəkəbl/

irrevocable

irrévocable
Meaning
Not able to be revoked, changed, or undone.
Example
She made an irrevocable decision to leave the company.
Elle a pris une décision irrévocable de quitter l'entreprise.
C1 adjective /ˌɪnədˈvaɪzəbl/

inadvisable

déconseillé
Meaning
Not recommended; likely to have undesirable consequences.
Example
It is inadvisable to drive in such heavy rain.
Il est déconseillé de conduire sous une telle pluie forte.
C1 adjective /ɪnˈstɪŋk.tɪv/

instinctive

instinctif, naturel, automatique
Meaning
Based on instinct; done without conscious thought; natural and automatic.
Example
His instinctive reaction saved his life.
Sa réaction instinctive lui a sauvé la vie.
C1 adjective /ɪmˈpɜːmiəbl/

impermeable

imperméable
Meaning
Not allowing fluid or gas to pass through.
Example
The container is made of impermeable plastic.
Le conteneur est fabriqué en plastique imperméable.
C1 adjective /ɪnˈvæljʊəbl/

invaluable

inestimable
Meaning
Extremely useful or indispensable.
Example
Her advice proved invaluable to my success.
Son conseil s'est avéré inestimable pour mon succès.
C1 adjective /ˌɪntəˈrɑːɡətɪv/

interrogative

interrogatif
Meaning
Relating to or conveying a question; in grammar, used to form questions.
Example
She raised an interrogative eyebrow when she heard the news.
Elle haussa un sourcil interrogatif lorsqu'elle entendit la nouvelle.
C1 adjective /aɪˈreɪt/

irate

furieux
Meaning
Extremely angry.
Example
The customer became irate after waiting for hours.
Le client est devenu furieux après avoir attendu pendant des heures.
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.
C1 noun ˈɪm.pɪ.təs

impetus

impulsion
Meaning
The force or motivation that drives something forward; momentum.
Example
The new policy provided an impetus for economic growth.
La nouvelle politique a donné un élan à la croissance économique.
C1 adjective /ˌɪndɪˈvɪzəbl/

indivisible

indivisible
Meaning
Not able to be divided or separated.
Example
The country's unity was indivisible despite differences.
L'unité du pays était indivisible malgré les différences.
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.
C1 adjective /ɪˈnɒkjuəs/

innocuous

inoffensif
Meaning
Not harmful or offensive.
Example
His remark was completely innocuous and not meant to offend anyone.
Son commentaire était totalement inoffensif et n'avait pas l'intention d'offenser qui que ce soit.
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.
C1 noun /ɪˈmɜː.ʃən/

immersion

immersion
Meaning
Complete engagement in an environment or experience.
Example
Immersion in VR games makes users feel like they are inside the virtual world.
L'immersion dans les jeux en réalité virtuelle fait sentir aux utilisateurs qu'ils sont à l'intérieur du monde virtuel.
C1 adjective /ɪnˈsɛp(ə)rəbəl/

inseparable

inséparable
Meaning
Unable to be separated or always together.
Example
The two friends have been inseparable since childhood.
Les deux amis sont inséparables depuis l'enfance.
C1 noun ˌɪm.pʌlˈsɪv.ɪ.ti

impulsivity

impulsivité
Meaning
The tendency to act quickly and without thought or care; lack of self-control.
Example
His impulsivity led him to make reckless choices.
Son impulsivité l'a conduit à prendre des décisions imprudentes.
C1 adjective /ˈɜːrksəm/

irksome

énervant
Meaning
annoying or irritating
Example
Waiting in a long line is one of the most irksome tasks.
Attendre dans une longue file est l'une des tâches les plus énervantes.
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

impossibilité
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
Finir le projet en un jour était une impossibilité.
C1 noun /ɪnˌkɑːsəˈreɪʃən/

incarceration

incarcération
Meaning
the state of being imprisoned or confined
Example
The criminal faced years of incarceration for his crimes.
Le criminel a purgé des années d'incarcération pour ses crimes.
C1 noun /aɪˈtɪnərɛri/

itinerary

itinéraire
Meaning
A planned route or schedule of a journey or trip.
Example
The travel agent gave us a detailed itinerary for our vacation.
L'agent de voyages nous a donné un itinéraire détaillé pour nos vacances.
C1 noun /ˌɪnkəmˌpætəˈbɪlɪti/

incompatibility

incompatibilité
Meaning
the state of being unable to exist or work together harmoniously; lack of compatibility
Example
The project failed because of incompatibility between the two software systems.
Le projet a échoué à cause de l’incompatibilité entre les deux systèmes logiciels.
C1 noun /ˌɪn.dʒəˈnjuː.ɪ.ti/

ingenuity

ingéniosité
Meaning
The quality of being clever, original, and inventive.
Example
His ingenuity led to groundbreaking innovations.
Son ingéniosité a conduit à des innovations de rupture.
C1 adjective /ɪˈmuː.və.bəl/

immovable

immobile
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
Les barrières immobiles empêchent le changement.
C1 adjective /ˌɪnkəmˈpætəbl/

incompatible

incompatible
Meaning
Not able to exist or work together without conflict.
Example
Their personalities were completely incompatible.
Leurs personnalités étaient complètement incompatibles.
C1 adjective /ɪnˈseɪʃəbl̩/

insatiable

insatiable
Meaning
impossible to satisfy; always wanting more
Example
Her insatiable curiosity drove her to read every book in the library.
Sa curiosité insatiable l'a poussée à lire tous les livres de la bibliothèque.
C1 noun /ɪnˈsek.tɪ.saɪd/

Insecticide

insecticide
Meaning
a substance used for killing insects; a chemical pesticide that targets insects
Example
The farmer sprayed insecticide on his crops to protect them from harmful bugs.
Le fermier a pulvérisé de l'insecticide sur ses cultures pour les protéger des insectes nuisibles.
C1 noun /ɪmˈbæl.əns/

Imbalance

déséquilibre
Meaning
lack of proportion or relation between corresponding things; unequal distribution
Example
The doctor said the patient's dizziness was caused by an inner ear imbalance.
Le docteur a dit que les vertiges du patient étaient causés par un déséquilibre dans l'oreille interne.
C1 noun /ˌɪmɔːrˈtæləti/

immortality

immortalité
Meaning
the state of living forever; eternal life or lasting fame beyond death
Example
Many ancient cultures believed that heroes could achieve immortality through great deeds.
De nombreuses cultures anciennes pensaient que les héros pouvaient atteindre l’immortalité par de grands exploits.
C1 adjective ɪmˈpɛkəbl

impeccable

impeccable
Meaning
In accordance with the highest standards; faultless.
Example
His impeccable taste in fashion was admired by all his peers.
Son goût impeccable en mode était admiré par tous ses pairs.
C1 adjective /ɪnˈdʒʊəriəs/

injurious

nuisible
Meaning
Causing or likely to cause harm or damage.
Example
Smoking is injurious to health.
Fumer est nuisible à la santé.
C1 adjective /ɪˈnuːmərəbəl/

Innumerable

innombrable; incalculable; infini
Meaning
too many to be counted; countless; infinite in number
Example
There are innumerable stars in the night sky that we cannot see with our naked eyes.
Il y a d'innombrables étoiles dans le ciel nocturne que nous ne pouvons pas voir à l'œil nu.
C1 adjective /ɪmˈpoʊzɪŋ/

imposing

imposant
Meaning
having an appearance that is grand, impressive, or commanding
Example
The castle is an imposing structure overlooking the valley.
Le château est une structure imposante qui surplombe la vallée.
C1 adjective /ˌɪndɪˈspjuːtəbəl/

Indisputable

indiscutable; incontestable; certain
Meaning
impossible to deny or argue against; undeniable; certain
Example
The evidence against him was indisputable.
Les preuves contre lui étaient indiscutables.
C1 noun /ɪnˈtɛstɪn/

intestine

intestin
Meaning
The part of the digestive system where food is digested and absorbed, extending from the stomach to the anus.
Example
The doctor explained how nutrients are absorbed in the small intestine.
Le médecin a expliqué comment les nutriments sont absorbés dans l'intestin grêle.
C1 adjective /ɪnˈkɒŋɡruəs/

incongruous

incongru
Meaning
Not fitting in with or suitable for the surroundings.
Example
His jokes were incongruous during the serious meeting.
Ses blagues étaient incongrues lors de la réunion sérieuse.
C1 verb /ɪnˈfjuːz/

infuse

infuser
Meaning
to fill or spread through something; to instill a quality, idea, or feeling
Example
The teacher tried to infuse her students with a love for reading.
Le professeur a essayé d'infuser à ses élèves un amour pour la lecture.
C1 noun /ˈɪn.tə.lekt/

intellect

intellect
Meaning
The ability to think, reason, and understand objectively.
Example
Her intellect is admired by all her colleagues.
Son intellect est admiré par tous ses collègues.
C1 noun /ˌɪn.səˌbɔːr.dɪˈneɪ.ʃən/

insubordination

insubordination
Meaning
Defiance of authority; refusal to obey orders.
Example
The soldier was punished for insubordination during the mission.
Le soldat a été puni pour insubordination pendant la mission.
C1 adjective /ɪˈmoʊbəl/

immobile

immobile
Meaning
unable to move or be moved
Example
After the accident, he was immobile for weeks.
Après l'accident, il est resté immobile pendant des semaines.
C1 noun ˌɪndɪˈspensəbl̩ ˈkɒmpɪtənsi

indispensable competency

compétence indispensable
Meaning
Essential skill or ability that cannot be done without; a crucial capability that is absolutely necessary.
Example
Digital literacy is an indispensable competency in the 21st century.
L'alphabétisation numérique est une compétence indispensable au XXIe siècle.
C1 adjective /ɪˈlɒdʒ.ɪ.kəl/

Illogical

Illogique
Meaning
not reasonable or sensible; lacking logic
Example
It would be illogical to go swimming in such cold weather.
Il serait illogique d'aller nager par un temps aussi froid.
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 adjective /ɪnˈsɪstənt/

insistent

insistant
Meaning
demanding something firmly and refusing to accept no
Example
The child was insistent on getting a new toy.
L'enfant était insistant pour obtenir un nouveau jouet.
C1 adverb /ˌɪnsɪˈdɛntəli/

incidentally

d'ailleurs
Meaning
by the way; used to introduce a remark not directly related to the main subject
Example
Incidentally, did you know that she studied in Paris?
D'ailleurs, savais-tu qu'elle avait étudié à Paris ?
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.
C1 adjective /ˈɪmpətənt/

impotent

impotent
Meaning
Lacking power, ability, or strength to take effective action.
Example
The citizens felt impotent against the corrupt system.
Les citoyens se sont sentis impuissants face au système corrompu.
C1 verb /ɪnˈsɪnjueɪt/

insinuate

insinuer
Meaning
To suggest or hint something indirectly and often unpleasantly.
Example
He insinuated that she had lied about her qualifications.
Il a insinué qu'elle avait menti sur ses qualifications.
C1 adjective /ɪmˈpæʃənd/

impassioned

passionné
Meaning
Filled with or showing great emotion.
Example
She gave an impassioned speech about human rights.
Elle a prononcé un discours passionné sur les droits de l'homme.
C1 adverb ɪnˈtrɪn.zɪ.kli

intrinsically

intrinsèquement
Meaning
In a way that is naturally or inherently part of something's essential nature.
Example
Some people are intrinsically motivated to learn.
Certaines personnes sont intrinsèquement motivées à apprendre.
C1 adjective ɪnɪɡˈzɔːstɪbəl

inexhaustible

inépuisable
Meaning
Unable to be used up or worn out; limitless.
Example
His inexhaustible energy allowed him to work tirelessly on his projects.
Son énergie inépuisable lui a permis de travailler sans relâche sur ses projets.
C1 adjective /ˈaɪərnˌklæd/

ironclad

inflexible
Meaning
impossible to change, break, or dispute; very strong and firm
Example
The company had an ironclad contract with its suppliers.
L'entreprise avait un contrat inflexible avec ses fournisseurs.
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 noun ɪnˈdʌldʒəns

indulgence

indulgence
Meaning
The practice of allowing oneself to enjoy the pleasure of something.
Example
His indulgence in junk food affected his health.
Son indulgence pour la malbouffe a nui à sa sante.
C1 noun /ˌaɪ.diˈɒl.ə.dʒi/

ideology

idéologie
Meaning
A system of ideas and ideals, especially one that forms the basis of economic or political theory and policy.
Example
Democracy is based on the ideology of freedom and equality.
La démocratie repose sur l'idéologie de la liberté et de l'égalité.
C1 adjective /ˌɪnəˈtɛntɪv/

inattentive

inattentif
Meaning
not paying attention; lacking focus or concentration
Example
The inattentive student missed several important instructions.
L'étudiant inattentif a manqué plusieurs consignes importantes.
C1 adjective ˌɪn.tə.dʒen.əˈreɪ.ʃən.əl

intergenerational

intergénérationnel, entre différentes générations d'une famille
Meaning
Existing or occurring between different generations of a family.
Example
Intergenerational wisdom ensures cultural continuity.
La sagesse intergénérationnelle garantit la continuité culturelle.
C1 noun /ɪnˈsæn.ə.ti/

Insanity

folie; démence
Meaning
the state of being seriously mentally ill; extreme foolishness or irrationality
Example
The defense lawyer argued that his client was not guilty by reason of insanity.
L'avocat de la défense a soutenu que son client n'était pas coupable pour cause de folie.
C1 noun /ˌɪrɪˌspɒnsəˈbɪləti/

irresponsibility

irresponsabilité
Meaning
lack of responsibility or accountability; failure to act in a reliable or sensible way
Example
The accident was caused by his irresponsibility at work.
L'accident a été causé par son irresponsabilité au travail.
C1 noun /ˌɪnkwɪˈzɪʃən/

inquisition

inquisition
Meaning
A prolonged and intense questioning or investigation, often harsh in nature.
Example
The journalist faced an inquisition from the panel about his sources.
Le journaliste a fait face à une inquisition de la part du panel sur ses sources.
C1 adjective /ɪnˈsɒlvənt/

insolvent

insolvable
Meaning
unable to pay debts owed
Example
The insolvent firm could not meet its financial obligations.
L'entreprise insolvable n'a pas pu remplir ses obligations financières.
C1 adjective /ˌɪnˌkɒnsɪˈkwɛnʃəl/

inconsequential

insignifiant
Meaning
Not important or significant; too small to matter.
Example
The mistake was minor and inconsequential.
L'erreur était mineure et insignifiante.
C1 verb /ˈɪtəreɪt/

iterate

itérer
Meaning
To repeat a process or statement, often to improve or refine.
Example
The software team will iterate the design until it meets user needs.
L'équipe de développement itérera la conception jusqu'à ce qu'elle réponde aux besoins des utilisateurs.
C1 adjective /ɪˈneɪn/

inane

insensé, stupide
Meaning
lacking sense, meaning, or significance; silly or pointless
Example
The movie was criticized for its inane dialogue.
Le film a été critiqué pour ses dialogues insensés.
C1 adjective /ˌɪnkɒmprɪˈhɛnsəbl/

incomprehensible

incompréhensible
Meaning
Impossible or very difficult to understand.
Example
The professor’s lecture was so fast it became incomprehensible.
Le cours du professeur était tellement rapide qu'il est devenu incompréhensible.
C1 adjective ɪn ˈfleɪ.ʃə.ner.i

inflationary

inflationniste
Meaning
Characterized by or tending to cause monetary inflation; relating to rising prices.
Example
The government took measures to control inflationary pressures.
Le gouvernement a pris des mesures pour contrôler les pressions inflationnistes.
C1 verb /ɪnˈvɜːrt/

invert

inverser
Meaning
To turn something upside down or in the opposite position, order, or direction.
Example
He inverted the glass to let the water drain out.
Il a inversé le verre pour laisser l'eau s'écouler.
C1 adjective; noun /ɪˈmɔːrtl/

immortal

immortel
Meaning
living forever; never dying; lasting forever in fame or memory
Example
Legends often describe heroes as immortal beings who never die.
Les légendes parlent d’êtres immortels.
C1 adjective /ˌaɪ.di.əˈlɒdʒ.ɪ.kəl/

ideological

idéologique
Meaning
Relating to or based on a system of ideas or beliefs.
Example
The two parties are divided by deep ideological differences.
Les deux partis sont divisés par de profondes divergences idéologiques.
C1 noun /ɪnˈkɒmpɪtəns/

incompetence

incompétence
Meaning
Lack of ability, skill, or effectiveness in doing something.
Example
The project failed due to the manager’s incompetence.
Le projet a échoué à cause de l'incompétence du manager.
C1 adjective /ɪˈlʌstriəs/

illustrious

illustre
Meaning
Well known, respected, and admired for past achievements.
Example
She had an illustrious career in medicine.
Elle avait une carrière illustre en médecine.
C1 noun /ɪnˈdʒʌŋkʃən/

injunction

injonction
Meaning
A judicial order restraining a person from an action or compelling a certain act.
Example
The court issued an injunction to stop the company from polluting the river.
Le tribunal a émis une injonction pour empêcher l'entreprise de polluer la rivière.
C1 verb /ɪnˈvælɪdeɪt/

invalidate

invalider
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
La nouvelle preuve pourrait invalider la décision précédente.
C1 noun /ˈɪnkjʊˌbeɪtər/

incubator

incubateur
Meaning
a device or environment that provides suitable conditions for eggs, cells, or infants to develop
Example
The premature baby was placed in an incubator for care.
Le bébé prématuré a été placé dans un incubateur pour ses soins.
C1 noun /ˌɪnsɪɡˈnɪfɪkəns/

insignificance

insignifiance
Meaning
The quality of being unimportant or trivial.
Example
He felt a sense of insignificance in the vast universe.
Il ressentait un sentiment d'insignifiance dans l'immensité de l'univers.
C1 adjective /ɪnˈtændʒəbl/

intangible

intangible
Meaning
Unable to be touched or grasped; not having a physical presence.
Example
Trust is an intangible quality in relationships.
La confiance est une qualité intangible dans les relations.
C1 verb /ˌɪn.trəˈspekt/

introspect

introspecter
Meaning
To examine one's own thoughts, feelings, or mental state.
Example
He often introspects before making important decisions.
Il se livre souvent à de l'introspection avant de prendre des décisions importantes.
C1 noun ˌɪn.toʊˈneɪ.ʃən

intonation

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

indict

inculper
Meaning
to formally accuse someone of committing a serious crime
Example
The grand jury decided to indict the politician for corruption.
Le grand jury a décidé d'inculper le politicien pour corruption.
C1 noun /ˈɪd.i.əm/

idiom

idiome
Meaning
A group of words whose meaning is different from the meanings of the individual words.
Example
The idiom 'break the ice' means to start a conversation in a friendly way.
L'idiome 'briser la glace' signifie commencer une conversation de manière amicale.
C1 noun /ɪnˈsɜːrdʒənt/

insurgent

insurgé
Meaning
A person who rises in revolt against authority or government.
Example
The army arrested several insurgents after the attack.
L'armée a arrêté plusieurs insurgés après l'attaque.
C1 adjective ɪnˈkʌm.bənt

incumbent

obligatoire
Meaning
necessary for (someone) as a duty or responsibility.
Example
It is incumbent upon all citizens to obey the law.
Il est obligatoire pour tous les citoyens d'obéir à la loi.
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 noun /ɪmˈpɒs.tər/

Impostor

imposteur; fraudeur
Meaning
a person who pretends to be someone else in order to deceive others; a fraud
Example
The impostor convinced everyone he was a doctor until his fake credentials were discovered.
L'imposteur a convaincu tout le monde qu'il était un médecin jusqu'à ce que ses faux diplômes soient découverts.
C1 adjective /ˌɪn.dɪˈspen.sə.bəl/

indispensable

indispensable
Meaning
Absolutely necessary, essential
Example
Water is indispensable for human survival.
L'eau est indispensable à la survie humaine.
C1 adverb, adjective /ˌɪnkɑːɡˈniːtoʊ/

incognito

incognito
Meaning
In disguise or with one's identity concealed.
Example
The celebrity traveled incognito to avoid the paparazzi.
La célébrité a voyagé incognito pour éviter les paparazzis.
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

indéfiniment
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
Le projet a été reporté indéfiniment.
C1 adjective /ˌɪnhɒˈspɪtəbl/

inhospitable

inhospitalier
Meaning
Harsh and difficult to live in; unfriendly or unwelcoming to guests.
Example
The desert is an inhospitable environment for most plants.
Le désert est un environnement inhospitalier pour la plupart des plantes.
C1 noun ˌɪnfrəˈstrʌktʃərəl dɪˈveləpmənt

infrastructural development

développement infrastructurel
Meaning
The process of building and improving the basic physical and organizational structures and facilities needed for the operation of a society or enterprise.
Example
Infrastructural development is necessary for efficient recycling.
Le développement infrastructurel est nécessaire pour un recyclage efficace.
C1 adjective ˈɪn.lənd

Inland

intérieur
Meaning
Situated in the interior of a country; away from the coast.
Example
Inland transport boosts local trade.
Le transport intérieur stimule le commerce local.
C1 verb /ˈɪnkjʊˌbeɪt/

incubate

incuber
Meaning
to keep eggs, cells, or organisms at the right conditions for development
Example
The hen will incubate the eggs until they hatch.
La poule incubera les œufs jusqu'à ce qu'ils éclosent.
C1 adjective /ˈɪnsələnt/

insolent

insolent, arrogant
Meaning
showing a rude and arrogant lack of respect
Example
The insolent student refused to follow the teacher's instructions.
L'étudiant insolent a refusé de suivre les instructions du professeur.
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

instantané
Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
Le changement de température a été presque instantané.
C1 verb /ɪnˈfrɪndʒ/

infringe

enfreindre
Meaning
To actively break the terms of a law, agreement, or right.
Example
Copying this software without permission will infringe copyright laws.
Copier ce logiciel sans permission enfreindra les lois sur le droit d'auteur.
C1 noun ɪnˈsɛpʃən

inception

inception
Meaning
The establishment or starting point of an institution or activity.
Example
The inception of the company marked a new era in the industry.
L'inception de l'entreprise a marqué une nouvelle ère dans l'industrie.
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.
C1 noun /ˌɪndɪɡˈneɪʃən/

indignation

indignation
Meaning
Strong displeasure or anger caused by something unjust, offensive, or insulting.
Example
Public indignation grew after the unfair verdict.
L'indignation publique a grandi après le verdict injuste.
C1 adjective /ɪnˈvɑːlənˌtɛri/

involuntary

involontaire
Meaning
done without will or conscious control
Example
He gave an involuntary shiver when he heard the loud noise.
Il a eu un frisson involontaire lorsqu'il a entendu le bruit fort.
C1 noun /ˌɪntəkəˈnɛktɪvɪti/

interconnectivity

interconnexion
Meaning
The state of being interconnected or the degree of connectivity between components
Example
The rise of interconnectivity has transformed global communication.
L'essor de l'interconnectivité a transformé la communication mondiale.
C1 adjective /ɪnˈkrɛdjələs/

incredulous

Meaning
unwilling or unable to believe something
Example
He gave her an incredulous look when she claimed she could fly.
C1 verb /ɪmˈpɑːrt/

impart

transmettre
Meaning
to make information known; to bestow or communicate
Example
The teacher imparted valuable knowledge to her students.
L'enseignant a imparté des connaissances précieuses à ses élèves.
C1 verb /ɪnˈkɑːrsəreɪt/

incarcerate

incarcérer
Meaning
to imprison or confine someone
Example
The authorities incarcerated the criminal after the trial.
Les autorités ont emprisonné le criminel après le procès.
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.
C1 adjective /ˌɪməˈtɪəriəl/

immaterial

immatériel
Meaning
Not important or relevant; lacking physical substance.
Example
The judge ruled that the argument was immaterial to the case.
Le juge a statué que l'argument était immatériel pour l'affaire.