insulate
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C1 verb /ˈɪnsjuleɪt/

insulate

isoler
Meaning
To protect something by covering it, especially to prevent heat, sound, or electricity from escaping or entering.
Example
The house was insulated to reduce heating costs.
La maison a été isolée pour réduire les coûts de chauffage.
B2 verb ˈɪmplɪment

implement

implémenter
Meaning
To put a decision or plan into effect; to execute or apply.
Example
Implementing educational policies is essential for progress.
Il est essentiel d'implémenter les politiques éducatives pour le progrès.
B1 adjective ˈɪnəveɪtɪv

innovative

innovant
Meaning
Featuring new methods; advanced and original
Example
Innovative strategies are required to combat pollution.
Des stratégies innovantes sont nécessaires pour lutter contre la pollution.
B2 adjective /ɪnˈseɪn/

insane

fou
Meaning
mentally ill; extremely foolish or unreasonable
Example
The idea of jumping off the cliff seemed insane.
L'idée de sauter du rocher semblait folle.
B2 noun /ˈaɪrəni/

irony

ironie
Meaning
a situation that is strange or amusing because it is the opposite of what is expected; the use of words to convey the opposite meaning
Example
The irony of the situation was that the winner forgot his own prize.
L'ironie de la situation était que le gagnant avait oublié son propre prix.
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.
B2 adjective /ɪnˈfɔːrmətɪv/

Informative

informatif
Meaning
giving or providing useful information; educational; instructive
Example
The documentary was very informative and educational.
Le documentaire était très informatif et éducatif.
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.
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 /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 verb /ɪmˈpjuːn/

impugn

contester la vérité, la validité ou l'honnêteté d'une déclaration ou d'un motif
Meaning
to dispute the truth, validity, or honesty of a statement or motive
Example
The lawyer tried to impugn the credibility of the witness.
L'avocat a essayé de contester la crédibilité du témoin.
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.
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.
C1 noun ˌɪnsjʊˈleɪʃən

insulation

isolation
Meaning
Material used to prevent heat, sound, or electricity from being transmitted from one area to another.
Example
Insulation of food storage areas can prevent pests from entering.
L'isolation des zones de stockage des aliments peut empêcher les nuisibles d'entrer.
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 /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.
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 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.
C2 adjective /ˌɪnˈekspɜːrt/

inexpert

inexpérimenté
Meaning
not skilled or experienced; lacking expertise
Example
The inexpert handling of the machine caused several mistakes.
La manipulation inexpérimentée de la machine a causé plusieurs erreurs.
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 /ɪnˈfrækʃən/

infraction

infraction
Meaning
A violation or breach of a rule, law, or agreement.
Example
The student was punished for a minor infraction of the school rules.
L'étudiant a été puni pour une infraction mineure aux règles de l'école.
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 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.
B1 adverb /ˈɪnstəntli/

instantly

instantanément
Meaning
immediately, without any delay
Example
He replied instantly to the message.
Il a répondu instantanément au message.
C1 noun /ˈɪmɪnəns/

imminence

imminence, état de proximité
Meaning
the state of being about to happen
Example
The imminence of the storm forced people to take shelter.
L'imminence de la tempête a forcé les gens à chercher un abri.
B2 adjective, noun /ˌɪn.təlˈɛk.tʃu.əl/

intellectual

intellectuel
Meaning
Relating to the intellect; a person who engages in critical thinking and study.
Example
She enjoys intellectual discussions about philosophy.
Elle aime les discussions intellectuelles sur la philosophie.
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.
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.
B2 noun ˈɪndɪkeɪtə

indicator

indicateur
Meaning
A thing that indicates the state or level of something.
Example
The unemployment rate is a key indicator of economic health.
Le taux de chômage est un indicateur clé de la santé économique.
A1 noun /aɪs/

Ice

glace
Meaning
water that has frozen and become solid
Example
The ice in my drink melted quickly in the hot weather.
La glace dans ma boisson a fondu rapidement par temps chaud.
B2 adverb /aɪˈrɒnɪkli/

ironically

ironiquement
Meaning
in a way that is contrary to what is expected or intended
Example
Ironically, the fire station burned down.
Ironicament, la caserne de pompiers a brûlé.
B1 verb ɪnˈkriːsɪŋ

increasing

croissant
Meaning
Becoming or making greater in size, amount, intensity, or degree; growing.
Example
Increasing awareness about education is necessary.
Augmenter la sensibilisation à l'éducation est nécessaire.
C1 adjective /ˌɪmprɪˈsaɪs/

imprecise

imprécis
Meaning
Not exact or accurate; vague.
Example
His explanation was too imprecise to be helpful.
Son explication était trop imprécise pour être utile.
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 /ˌɪnədˈvɜːrtənt/

inadvertent

involontaire, non intentionnel
Meaning
Not resulting from or achieved through deliberate planning; unintentional.
Example
Her inadvertent mistake caused a delay in the project.
Son erreur involontaire a causé un retard dans le projet.
B1 verb /ɪnˈkriːst/

increased

augmenté
Meaning
became greater in size, amount, or degree
Example
The company's revenue increased last year.
Les revenus de l'entreprise ont augmenté l'année dernière.
C2 adjective /ɪmˈpɔːrtʃənət/

importunate

importun
Meaning
Persistent to the point of annoyance or intrusion
Example
The importunate salesman kept calling despite repeated refusals.
Le vendeur importun a continué à appeler malgré les refus répétés.
C2 adjective /ˌɪn.trəˈmjʊə.rəl/

intramural

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

impropriety

impropriété
Meaning
Failure to observe standards of honesty or modesty; improper behavior.
Example
The politician was accused of financial impropriety.
Le politicien a été accusé d'impropriété financière.
B1 abbreviation /ˌaɪˈiː/

ie

c'est-à-dire
Meaning
That is to say; used to clarify or explain something more precisely.
Example
Many amphibians, i.e., frogs and salamanders, can live both in water and on land.
De nombreux amphibiens, c'est-à-dire des grenouilles et des salamandres, peuvent vivre à la fois dans l'eau et sur terre.
B2 adjective /ˌɪnsɪɡˈnɪfɪkənt/

insignificant

insignifiant
Meaning
Too small or unimportant to be worth considering.
Example
The cost was so insignificant that nobody noticed it.
Le coût était tellement insignifiant que personne ne l'a remarqué.
B1 adverb /ɪnˈkriːsɪŋli/

increasingly

de plus en plus
Meaning
more and more over time
Example
People are increasingly concerned about climate change.
Les gens sont de plus en plus préoccupés par le changement climatique.
B1 noun /ɪmˈprɛʃən/

impression

impression, concept
Meaning
an idea, feeling, or opinion about something or someone
Example
The book gave me a good first impression.
Le livre m'a donné une bonne première impression.
C2 noun /ˈɪmpjʊdəns/

impudence

impudence
Meaning
Rude and disrespectful behavior.
Example
The student's impudence shocked the entire class.
L'impudence de l'étudiant a choqué toute la classe.
B2 adjective /ɪˈmjuːn/

immune

immunisé
Meaning
protected from disease or from the effects of something
Example
Children who are vaccinated are immune to many diseases.
Les enfants vaccinés sont immunisés contre de nombreuses maladies.
C1 adjective /ˈɪnbɔːrn/

Inborn

inné; congénital; inhérent
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
Elle a un talent inné pour la musique.
A2 pronoun /ɪtˈsɛlf/

itself

lui-même
Meaning
Used to emphasize the thing just mentioned; by its own power or effort.
Example
The cat cleaned itself after eating.
Le chat s'est nettoyé lui-même après avoir mangé.
C1 adjective /ˌɪrɪˈvɜːrsəbl/

irreversible

irréversible
Meaning
Not able to be undone, changed, or reversed.
Example
The damage caused by the fire was irreversible.
Les dommages causés par le feu étaient irréversibles.
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.
A1 conjunction /ɪf/

if

si
Meaning
used to introduce a condition or supposition
Example
If it rains tomorrow, we will stay home.
Si il pleut demain, nous resterons à la maison.
C2 adjective /ɪmˈpɒndərəbl̩/

imponderable

impondérable
Meaning
Something difficult or impossible to estimate, assess, or understand
Example
The outcome of the election depends on many imponderable factors.
Le résultat des élections dépend de nombreux facteurs impondérables.
C1 verb /ɪnˈfleɪt/

inflate

gonfler
Meaning
to fill with air or gas so it expands; to increase excessively or artificially
Example
The mechanic inflated the tire to the correct pressure.
Le mécanicien a gonflé le pneu à la bonne pression.
C1 verb /ɪnˈskraɪb/

inscribe

graver
Meaning
to write or carve words or symbols on a surface
Example
They inscribed her name on the trophy.
Ils ont gravé son nom sur le trophée.
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.
A2 noun /ˈɪm.ɪdʒ/

Image

image; représentation; portrait
Meaning
a representation of the external form of a person or thing in art; a mental picture or impression
Example
The company worked hard to improve its public image after the scandal.
L'entreprise a travaillé dur pour améliorer son image publique après le scandale.
C1 noun /ˌɪnkənˈsɪstənsi/

inconsistency

incohérence
Meaning
The quality of being contradictory, irregular, or not staying the same.
Example
There is an inconsistency between his words and actions.
Il y a une incohérence entre ses paroles et ses actions.
C1 adjective /ɪnˈflæməbəl/

Inflammable

inflammable; combustible
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
Le matériau inflammable a pris feu rapidement.
B2 noun /ɪnˈdʒɛkʃən/

injection

injection
Meaning
the act of introducing a substance into the body through a needle
Example
The nurse gave me an injection to prevent the infection.
L'infirmière m'a fait une injection pour prévenir l'infection.
B2 noun /ˈɪntərfeɪs/

interface

interface
Meaning
a point where two systems, subjects, or organizations meet and interact
Example
The user interface is designed to be intuitive and user-friendly.
L'interface utilisateur est conçue pour être intuitive et facile à utiliser.
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.
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 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.
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 /ɪnˈɛlɪdʒəbəl/

Ineligible

inéligible; non qualifié; inapte
Meaning
not qualified or entitled to participate or be chosen; unsuitable
Example
Students with poor grades are ineligible for the scholarship program.
Les étudiants avec de mauvaises notes sont inéligibles pour le programme de bourses.
B2 verb /ɪnˈdjuːs/

induce

induire
Meaning
to cause or persuade someone to do something; to bring about a result
Example
The doctor induced sleep with a mild sedative.
Le médecin a induit le sommeil avec un sédatif léger.
B2 adjective /ˌɪnɪˈfɪʃənt/

Inefficient

inefficace
Meaning
not achieving maximum productivity; wasteful of time or resources
Example
The old computer system was inefficient and wasted a lot of time.
Le vieux système informatique était inefficace et gaspillait beaucoup de temps.
C1 verb /ɪnˈklaɪn/

incline

s'incliner
Meaning
to feel willing or favorably disposed toward something; to bend or tilt
Example
She is inclined to agree with the proposal.
Elle est inclinée à être d'accord avec la proposition.
C1 noun /ɪnˈkɜːrʒən/

incursion

incursion
Meaning
A sudden attack or invasion into a place or territory.
Example
The army repelled the enemy incursion at the border.
L'armée a repoussé l'incursion ennemie à la frontière.
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.
B2 adjective /ɪmˈper.ə.tɪv/

imperative

impératif
Meaning
Of vital importance; crucial; giving or expressing a command.
Example
It is imperative to address the climate crisis immediately.
Il est impératif de traiter immédiatement la crise climatique.
C1 verb /ˈɪmprəvaɪz/

improvise

improviser
Meaning
To create or perform something spontaneously without preparation.
Example
The actor had to improvise his lines when he forgot the script.
L'acteur a dû improviser ses répliques lorsqu'il a oublié le script.
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.
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.
C1 adjective ɪˈneɪt

Innate

inné ou naturel
Meaning
Existing from birth or natural
Example
She has an innate talent for music.
Elle a un talent inné pour la musique.
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.
B2 adjective /ˈɪmpæktfʊl/

impactful

impactant
Meaning
Having a major impact or effect; powerful and forceful.
Example
Her impactful speech moved the audience to take action.
Son discours impactant a poussé l'auditoire à passer à l'action.
C1 verb /ɪmˈpɛrɪl/

imperil

mettre en danger
Meaning
To put in danger or at risk.
Example
Reckless driving can imperil the lives of others.
La conduite imprudente peut mettre la vie des autres en danger.
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 /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.
C1 noun /ˌɪnkjʊˈbeɪʃən/

incubation

le processus de maintenir des œufs, des cellules ou des organismes dans les conditions appropriées pour leur développement
Meaning
the process of keeping eggs, cells, or organisms in the right conditions for development
Example
The incubation of the eggs lasted for three weeks.
L'incubation des œufs a duré trois semaines.
C1 noun ɪnˌten.sɪ.fɪˈkeɪ.ʃən

intensification

intensification
Meaning
The process of becoming or making something more intense or extreme.
Example
The intensification of climate change requires urgent action.
L'intensification du changement climatique nécessite une action urgente.
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 /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 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.
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 /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.
C1 verb /ɪmˈpɪndʒ/

impinge

affecter
Meaning
to have an effect or impact on something; to encroach or infringe
Example
The noise from the construction site impinges on our daily activities.
Le bruit du chantier impacte nos activités quotidiennes.
B2 noun /ɪnˈkluːʒən/

inclusion

inclusion
Meaning
the action or state of including or being included within a group or structure
Example
Diversity and inclusion are key values in modern workplaces.
La diversité et l'inclusion sont des valeurs clés dans les lieux de travail modernes.
B2 verb aɪˈdɛntɪfaɪd

identified

identifié
Meaning
To recognize or establish who or what someone or something is.
Example
The root causes of the issue need to be identified.
Les causes profondes du problème doivent être identifiées.
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 adjective /ɪnˈdɛkərəs/

indecorous

indécent
Meaning
Not in keeping with good taste and propriety; improper.
Example
His indecorous behavior shocked the audience.
Son comportement indécent a choqué l'audience.
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.
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 adjective /ˈɪnfəməs/

infamous

infâme
Meaning
well known for some bad quality or deed
Example
The dictator was infamous for his cruelty.
Le dictateur était infâme pour sa cruauté.
C1 adjective /ɪmˈpæsɪv/

impassive

impassible
Meaning
Not showing or feeling emotion; expressionless.
Example
Despite the shocking news, she remained impassive.
Malgré les nouvelles choquantes, elle est restée impassible.
C1 adjective /ɪnˈsɪdiəs/

insidious

insidieux
Meaning
Proceeding in a gradual, subtle way but with harmful effects.
Example
The insidious spread of misinformation can damage trust.
La propagation insidieuse de la désinformation peut nuire à la confiance.
B2 verb /ɪnˈstrʌkt/

instruct

instruire
Meaning
to teach; to give directions
Example
The teacher instructed the students carefully.
L'enseignant a instruit les élèves avec soin.
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 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.
B1 verb /ɪnˈstɔːl/

install

installer
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
Il a installé le nouveau logiciel sur son ordinateur.
C1 noun /ɪnˈhɛrɪtər/

inheritor

héritier
Meaning
a person who receives money, property, or a title when someone dies
Example
She became the inheritor of her family's estate.
Elle est devenue l'héritière de la propriété de sa famille.
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.
A2 noun /ˈɪndʒəri/

injury

blessure
Meaning
Harm or damage to a person’s body caused by an accident or attack.
Example
He suffered a serious injury during the football match.
Il a subi une grave blessure pendant le match de football.
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.
A2 noun /ˈɪlnəs/

illness

maladie
Meaning
A condition of being unwell or suffering from a disease.
Example
She missed school due to a serious illness.
Elle a manqué l'école à cause d'une grave maladie.
A1 preposition /ɪn ˈfrʌnt əv/

in front of

devant
Meaning
positioned before or ahead of something; facing or located at the forward side of a person or object
Example
She stood in front of the building.
Elle se tenait devant le bâtiment.
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 /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.
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.
B1 noun ˌɪndɪˈpendəns

independence

indépendance
Meaning
The fact or state of being independent; freedom from outside control; not being subject to another's authority.
Example
Independence inspired the movement.
L'indépendance a inspiré le mouvement.
C1 adjective /ˈɪɡ.ni.əs/

igneous

igné
Meaning
Formed through the cooling and solidification of magma or lava.
Example
Granite is an igneous rock commonly used in construction.
Le granit est une roche ignée couramment utilisée dans la construction.
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.
B2 noun /ɪnˈtɜː.prə.tər/

Interpreter

interprète; traducteur;
Meaning
a person who translates orally from one language into another; someone who explains meaning
Example
The international conference hired professional interpreters to translate speeches in real time.
La conférence internationale a embauché des interprètes professionnels pour traduire les discours en temps réel.
C1 verb /ˈɪnfɪltreɪt/

infiltrate

infiltrer
Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
Les espions ont réussi à infiltrer la base ennemie.
B2 noun ˌɪn.tɪˈɡreɪ.ʃən

integration

Intégration. Unification.
Meaning
The action or process of integrating; the process of combining or adding parts to make a unified whole.
Example
Integration of networks will improve global communication.
L'intégration des réseaux améliorera la communication mondiale.
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.
B2 adjective /ɪnˈtriːɡɪŋ/

intriguing

très intéressant et inhabituel ; éveillant la curiosité
Meaning
very interesting and unusual; arousing curiosity
Example
The movie has an intriguing plot that keeps the audience hooked.
Le film a un scénario intrigant qui captive le public.
B2 adjective /ˌɪnsɪˈkjʊə/

insecure

insécuritaire
Meaning
not confident or assured; uncertain and anxious
Example
She felt insecure about her performance in the exam.
Elle se sentait insécure par rapport à sa performance dans l'examen.
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.
C2 adjective /ˌɪrɪˈdɛsənt/

iridescent

iridescent
Meaning
showing luminous colors that seem to change when seen from different angles
Example
She wore an iridescent dress that sparkled in the light.
Elle portait une robe iridescente qui scintillait à la lumière.
B2 noun /ɪnˈfek.ʃən/

Infection

infection
Meaning
the process of infecting or the state of being infected; a disease caused by germs
Example
The doctor prescribed antibiotics to treat the bacterial infection in her throat.
Le médecin a prescrit des antibiotiques pour traiter l'infection bactérienne dans sa gorge.