invitor
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C2 noun /ɪnˈvaɪtər/

invitor

invitant
Meaning
a person who invites someone to an event, meeting, or place
Example
The invitor greeted all the guests warmly at the entrance.
L’invitant a accueilli les invités à l’entrée.
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.
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.
C1 noun ˌɪnˈsaɪtfʊlnɪs

insightfulness

perspicacité, capacité d'analyse
Meaning
The capacity to gain an accurate and deep intuitive understanding of a person or thing.
Example
His insightfulness helped solve the complex problem.
Sa perspicacité a aidé à résoudre le problème complexe.
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.
C2 verb /ɪnˈsteɪt/

instate

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

infelicitous

inopportun
Meaning
not suitable or well chosen; awkward or unfortunate
Example
His infelicitous remark ruined the atmosphere of the meeting.
Sa remarque inopportune a gâché l'ambiance de la réunion.
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.
B1 adjective /ɪmˈpres.ɪv/

Impressive

impressionnant
Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
Sa performance impressionnante lui a valu une ovation debout.
C2 noun /ɪnˈtɛnʃən/

intension

contenu interne
Meaning
The internal content of a concept; the set of attributes implied by a word or phrase.
Example
The intension of the word 'dog' includes being a mammal and domesticated.
L'intension du mot 'chien' inclut être un mammifère et être domestiqué.
C2 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.
B2 noun /ˌɪntərˈfɪərəns/

interference

interférence
Meaning
the action of interfering with something
Example
The radio signal was disrupted due to interference from nearby electronics.
Le signal radio a été perturbé en raison de l'interférence des appareils électroniques à proximité.
A2 noun /ˈɪʃ.uːz/

issues

problèmes
Meaning
Important topics or problems for debate or discussion.
Example
Health issues from pollution are increasing.
Les problèmes de santé liés à la pollution augmentent.
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 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.
C2 noun /ˌɪntərˈsɛʃən/

intercession

intercession
Meaning
the act of intervening or pleading on behalf of another person
Example
The prisoner was released due to the intercession of influential leaders.
Le prisonnier a été libéré grâce à l'intercession de leaders influents.
B2 verb /ˈɪl.ə.streɪt/

illustrate

illustrer
Meaning
to explain or make something clear by using examples, pictures, or comparisons
Example
The teacher used diagrams to illustrate the concept.
Le professeur a utilisé des diagrammes pour illustrer le concept.
B2 adjective /ˈaɪsi/

Icy

gelé; extrêmement froid; hostile
Meaning
extremely cold; covered with ice; unfriendly or hostile
Example
The icy wind made everyone shiver.
Le vent glacé a fait trembler tout le monde.
B1 adjective /ɪˈmiːdiət/

immediate

immédiat
Meaning
happening or done without delay
Example
The doctor gave her immediate attention.
Le médecin lui a donné une attention immédiate.
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.
C2 adjective /ɪnˈsuːpərəbl/

insuperable

insurmontable
Meaning
Impossible to overcome or surpass.
Example
The team faced insuperable challenges during the expedition.
L'équipe a fait face à des défis insurmontables lors de l'expédition.
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.
B2 adjective /ɪnˈstrʌkʃənəl/

instructional

pédagogique
Meaning
providing knowledge or information; intended to teach
Example
The website offers many instructional videos for beginners.
Le site Web propose de nombreuses vidéos pédagogiques pour les débutants.
B1 adjective /ɪnkəˈrɛkt/

incorrect

incorrect
Meaning
not correct or accurate
Example
The information you provided was incorrect.
L'information que vous avez fournie était incorrecte.
C1 adjective /ɪnˈveɪsɪv/

invasive

invasif
Meaning
Tending to spread harmfully, intruding aggressively, or encroaching beyond proper boundaries.
Example
The doctor explained that the procedure was minimally invasive.
Le médecin a expliqué que la procédure était peu invasive.
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.
C2 noun /ɪˈnænɪti/

inanity

ineptie, absurdité
Meaning
a nonsensical remark or action; silliness; emptiness
Example
The speech was full of inanities that bored the audience.
Le discours était rempli d'inepties qui ennuyaient le public.
C1 adjective ˌɪm.pəˈsɛp.tɪ.bəl

imperceptible

imperceptible
Meaning
So subtle or gradual that it is difficult to notice or perceive
Example
The changes in his behavior were imperceptible at first.
Les changements dans son comportement étaient imperceptibles au début.
A2 verb /ɪnˈkluːd/

include

inclure
Meaning
to have as part of a whole; to contain or comprise
Example
The price includes all taxes.
Le prix inclut toutes les taxes.
C1 noun /ˌɪnkəmˈpliːtnəs/

incompleteness

incomplétude
Meaning
the state of not being complete or whole; lack of necessary parts or fullness
Example
The incompleteness of the report caused delays in the project.
L’incomplétude du rapport a causé des retards dans le projet.
C1 adjective /ˌɪndɪˈskriːt/

indiscreet

imprudent
Meaning
Not careful in what one says or does, likely to reveal secrets or offend.
Example
It was indiscreet of him to mention the plan in public.
C'était imprudent de sa part de mentionner le plan en public.
C2 adjective /ˌɪnɪkˈspiːdiənt/

inexpedient

déconseillé
Meaning
Not advisable, suitable, or practical in the circumstances.
Example
It would be inexpedient to invest without proper research.
Il serait déconseillé d'investir sans une recherche appropriée.
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.
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.
B1 verb /ɪnˈtend/

intend

avoir l'intention
Meaning
to plan or have in mind as a purpose; to mean
Example
I intend to finish this project by tomorrow.
J'ai l'intention de finir ce projet d'ici demain.
C1 noun ɪˌræʃ.ənˈæl.ɪ.ti

irrationality

irrationalité, absence de logique, déraison
Meaning
The quality of being illogical or unreasonable; lack of rational thought.
Example
His decision was driven by complete irrationality.
Sa décision a été guidée par une irrationalité totale.
B1 adjective /ˌɪnɪkˈspɛnsɪv/

Inexpensive

bon marché; abordable; économique
Meaning
not costing a lot of money; affordable; budget-friendly
Example
This restaurant offers delicious and inexpensive meals for students.
Ce restaurant propose des repas délicieux et bon marché pour les étudiants.
C1 adjective /ɪnˈɔːdəbl/

inaudible

inaudible
Meaning
Unable to be heard.
Example
Her voice was almost inaudible over the noise.
Sa voix était presque inaudible par-dessus le bruit.
C1 noun /ˈɪŋ.krə.mənt/

Increment

augmentation
Meaning
an increase or addition, especially one of a series on a fixed scale; a regular increase in salary
Example
He received an annual increment of five percent in his salary this year.
Il a reçu une augmentation annuelle de cinq pour cent de son salaire cette année.
C2 noun /ˈaɪ.ərn.wʊd/

Ironwood

bois de fer
Meaning
a hard, dense wood from various trees; also the tree itself that produces small flowers
Example
The ironwood tree blooms with tiny white flowers.
L'arbre de bois de fer fleurit avec de petites fleurs blanches.
C2 noun /ˌɪn.təˈvɛn.ʃə.nɪ.zəm/

interventionism

interventionnisme
Meaning
Government policy of active involvement in economic affairs.
Example
The central bank's interventionism helped stabilize inflation.
L'interventionnisme de la banque centrale a aidé à stabiliser l'inflation.
B2 verb /ɪnˈhæbɪt/

inhabit

habiter
Meaning
to live in; to occupy as a dwelling
Example
Many animals inhabit the forest.
Beaucoup d'animaux habitent la forêt.
B1 noun ˈɪmpækt

impact

impact
Meaning
A strong effect or influence; the action of one object coming forcibly into contact with another.
Example
The decision had great impact.
La décision a eu un grand impact.
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.
B2 adjective /ɪnˈkluːsɪv/

inclusive

inclusif
Meaning
Including all the services, facilities, or items normally expected or required; not excluding any section of society or any party involved.
Example
Inclusive growth benefits all sections of society.
La croissance inclusive bénéficie à toutes les sections de la société.
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.
C2 verb /ɪˈmjʊər/

immure

enfermer
Meaning
to confine or enclose someone against their will
Example
The prisoner was immured in a dark cell.
Le prisonnier a été enfermé dans une cellule sombre.
C2 noun /ˈaɪ.səˌbɑːr/

isobar

isobare
Meaning
A line on a weather map connecting points of equal atmospheric pressure.
Example
The meteorologist explained how isobars indicate wind speed and direction.
Le météorologue a expliqué comment les isobares indiquent la vitesse et la direction du vent.
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 /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.
B1 adverb /ɪˈnɪʃəli/

initially

initialement
Meaning
At the beginning; at first.
Example
Initially, he refused the offer but later accepted it.
Au début, il a refusé l'offre mais l'a acceptée plus tard.
C2 noun /ɪnˌtɜːrpəˈleɪʃən/

interpolation

interpolation
Meaning
The act of inserting something into a text or estimating values within a sequence of data.
Example
The scientist used interpolation to predict the missing data points.
Le scientifique a utilisé l'interpolation pour prédire les points de données manquants.
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 adjective /ɪmˈpjʊər/

Impure

impur
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
L'eau impure a causé des problèmes de santé dans le village.
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 /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.
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 noun /ɪnˈɛk.wɪ.ti/

inequity

inégalité
Meaning
Lack of fairness or justice; unequal distribution or treatment.
Example
Social inequity continues to be a global issue.
L'inégalité sociale reste un problème mondial.
A2 adverb /ɪnˈdiːd/

indeed

en effet
Meaning
used to emphasize or confirm a statement
Example
It was a long journey indeed.
C'était un long voyage, en effet.
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

se faire bien voir
Meaning
To gain favor or approval by deliberate effort, often in a flattering way.
Example
She tried to ingratiate herself with her boss by complimenting him often.
Elle a essayé de s'ingratiser auprès de son patron en le complimentant souvent.
C2 adjective /ˌaɪsəʊˈθɜːrməl/

isothermal

isotherme
Meaning
Having or maintaining equal or constant temperature.
Example
The experiment was conducted under isothermal conditions.
L'expérience a été réalisée dans des conditions isothermes.
B1 noun /ɪˌmædʒ.ɪˈneɪ.ʃən/

Imagination

imagination; faculté créative
Meaning
the faculty or action of forming new ideas or images not present to the senses; creative thinking
Example
Children's imagination allows them to turn a cardboard box into a spaceship or castle.
L'imagination des enfants leur permet de transformer une boîte en carton en un vaisseau spatial ou un château.
C1 verb /ˈɪmplɪˌkeɪt/

implicate

impliquer
Meaning
To show someone’s involvement in a crime or wrongdoing.
Example
The evidence implicated several officials in the scandal.
Les preuves ont impliqué plusieurs responsables dans le scandale.
B2 adjective /ɪnˈfɪə.ri.ər/

inferior

inférieur
Meaning
Of lower quality, rank, or status.
Example
This material is inferior to the one we used before.
Ce matériau est inférieur à celui que nous avons utilisé auparavant.
B1 adjective /ɪnˈtɜːrnəl/

internal

interne
Meaning
situated inside; relating to the inside or inner part of something
Example
The company is conducting an internal audit this month.
L'entreprise effectue un audit interne ce mois-ci.
B2 noun ɪnˌdʌstrɪəlaɪˈzeɪʃən

industrialization

industrialisation
Meaning
The development of industries in a country or region on a wide scale.
Example
Industrialization changed the global economy dramatically.
L'industrialisation a radicalement changé l'économie mondiale.
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.
A2 adverb /ɪnˈstɛd/

instead

à la place de
Meaning
As an alternative or substitute.
Example
She didn’t buy the dress; instead, she chose a pair of shoes.
Elle n'a pas acheté la robe; à la place, elle a choisi une paire de chaussures.
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

institutionnaliser
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
Le gouvernement cherche à institutionnaliser la protection de l'environnement.
B2 noun /ˈɪn.vɔɪs/

Invoice

facture
Meaning
a list of goods sent or services provided, with a statement of the sum due for these
Example
The company sent an invoice for the office supplies delivered last week.
L'entreprise a envoyé une facture pour les fournitures de bureau livrées la semaine dernière.
C2 noun /ˌɪmpjuˈteɪʃən/

imputation

imputation
Meaning
an accusation or attribution of blame
Example
The politician denied the imputation of corruption.
Le politicien a nié l'imputation de corruption.
C2 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.
B2 verb /ɪˈnɪʃieɪt/

initiate

initier
Meaning
to begin or start; to introduce someone to a new activity
Example
The company will initiate a new training program.
L'entreprise va initier un nouveau programme de formation.
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.
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.
C1 adjective /ɪnˈdetɪd/

Indebted

endetté; reconnaissant
Meaning
owing money or gratitude to someone; obligated; grateful
Example
I am deeply indebted to my teacher for all her guidance.
Je suis profondément endetté envers ma professeure pour toute sa guidance.
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.
B1 noun /ɪnˈɡriːdiənt/

ingredient

ingrédient
Meaning
A component part or element of something, especially in a recipe.
Example
Flour is a key ingredient in baking bread.
La farine est un ingrédient clé pour faire du pain.
C2 adjective /ɪˈnɪmɪkəl/

inimical

hostile / défavorable
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
La politique était défavorable à la croissance économique du pays.
C1 noun /ˌɪnɪkˈspɪəriəns/

inexperience

inexpérience
Meaning
Lack of knowledge or skill in a particular activity or field.
Example
His inexperience in handling negotiations was evident.
Son inexpérience dans la gestion des négociations était évidente.
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.
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.
B2 adjective, noun /ɪzˈreɪli/

israeli

israélien
Meaning
relating to Israel or its people; a person from Israel
Example
She works for an Israeli company.
Elle travaille pour une entreprise israélienne.
C2 verb /ˈɪndjʊˌreɪt/

indurate

endurcir
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
Des années de difficultés ont induré son esprit.
C2 adjective /ɪnˈkɒnstənt/

inconstant

inconstant
Meaning
frequently changing; not consistent or dependable
Example
His inconstant moods made it difficult to work with him.
Ses humeurs inconstantes rendaient difficile de travailler avec lui.
B2 noun /ˈɪɡ.nər.əns/

Ignorance

ignorance
Meaning
lack of knowledge or information; the state of being uninformed about something
Example
His ignorance about basic computer skills made it difficult for him to find a job.
Son ignorance des compétences informatiques de base a rendu difficile pour lui de trouver un emploi.
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.
B2 adjective/noun /ɪˈrɑːki/

iraqi

irakien
Meaning
relating to Iraq or its people
Example
The Iraqi culture is rich and diverse.
La culture irakienne est riche et diversifiée.
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 /ˈɪsməs/ or /ˈɪsθməs/

isthmus

isthme
Meaning
A narrow strip of land connecting two larger land areas, often with water on either side.
Example
The Panama Canal cuts through the Isthmus of Panama.
Le canal de Panama traverse l'isthme de Panama.
B1 noun ˈɪn.də.stri

industry

industrie
Meaning
Economic activity concerned with the processing of raw materials and manufacture of goods in factories.
Example
The industry focuses on luxury experiences.
L'industrie se concentre sur des expériences de luxe.
B2 verb /ɪnˈflɪkt/

inflict

infliger
Meaning
to cause something unpleasant or painful to be suffered by someone or something
Example
The storm inflicted considerable damage to the city.
La tempête a infligé des dégâts considérables à la ville.
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 /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.
B2 verb /ɪnˈfɜːr/

infer

inférer
Meaning
to conclude or deduce something from evidence and reasoning rather than from explicit statements
Example
From his silence, I inferred that he was not happy with the decision.
De son silence, j'ai inféré qu'il n'était pas content de la décision.
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.
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.
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.
B2 adjective ˌɪnɪˈfɛktɪv

ineffective

inefficace
Meaning
Not producing any significant or desired effect; not achieving the intended result.
Example
Rote learning often proves to be ineffective.
L'apprentissage par cœur prouve souvent son inefficacité.
C2 noun /ɪmˌpɜːrtərbəˈbɪləti/

imperturbability

imperturbabilité
Meaning
The quality of being calm and not easily disturbed or upset.
Example
Her imperturbability during the crisis impressed everyone.
Son imperturbabilité pendant la crise a impressionné tout le monde.
C1 noun /ɪnˈdjuːsmənt/

inducement

incitation
Meaning
something that persuades or encourages someone to do something
Example
The company offered a bonus as an inducement to employees.
L'entreprise a offert une prime comme incitation aux employés.
C1 verb /ɪmˈpɜːrsəneɪt/

impersonate

imiter
Meaning
to pretend to be another person in order to entertain or deceive
Example
He was arrested for trying to impersonate a police officer.
Il a été arrêté pour avoir tenté d'usurper l'identité d'un policier.
C1 adjective /ɪnˈhjuːmən/

Inhuman

inhumain
Meaning
lacking human qualities; cruel; brutal; savage
Example
The dictator's inhuman treatment of prisoners shocked the international community.
The dictator's inhuman treatment of prisoners shocked the international community.
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 noun /ˌɪnədˈvɜːrtəns/

inadvertence

inadvertance
Meaning
Failure to pay attention; carelessness.
Example
The error happened through sheer inadvertence.
L'erreur est survenue par pure inadvertance.
C1 verb /ɪnˈdʌkt/

induct

admettre formellement quelqu'un dans une position, organisation ou bureau
Meaning
to formally admit someone into a position, organization, or office
Example
She was inducted into the university's honor society.
Elle a été admise dans la société d'honneur de l'université.
C1 noun /ˈɪntrɪkəsi/

intricacy

complexité
Meaning
the quality of being very detailed or complicated
Example
The intricacy of the design impressed everyone.
La complexité du design a impressionné tout le monde.
B2 verb /ˈɪntɪɡreɪt/

integrate

intégrer
Meaning
To combine or bring together into a unified whole.
Example
The new system integrates data from multiple sources.
Le nouveau système intègre des données provenant de plusieurs sources.
C1 verb /ɪnˈfɛst/

infest

infester
Meaning
to overrun in large numbers, especially so as to cause damage or discomfort
Example
The old house was infested with rats.
La vieille maison était infestée de rats.
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.
C1 noun /ˈɪnsɪdəns/

incidence

incidence
Meaning
the occurrence, rate, or frequency of something
Example
The incidence of road accidents has decreased this year.
L'incidence des accidents de la route a diminué cette année.
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.
B2 verb /ɪnˈherɪt/

inherit

hériter
Meaning
to receive money, property, or characteristics from someone when they die; to acquire from predecessors
Example
She inherited her grandmother's house.
Elle a hérité de la maison de sa grand-mère.
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.
B1 verb /ɪnˈfɔ:m/

inform

informer
Meaning
to tell someone about something; to give information
Example
Please inform me when you arrive at the airport.
s'il vous plaît, informez-moi lorsque vous arrivez à l'aéroport.
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 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 noun /ˈɪntərˌveɪl/

intervale

terre basse le long d'une rivière, généralement fertile et plate
Meaning
A low-lying tract of land along a river, usually fertile and flat.
Example
The farmers cultivated crops on the lush intervale by the river.
Les agriculteurs ont cultivé des cultures dans l'intervalle fertile près de la rivière.
C2 noun /ˈaɪsinəs/

iciness

froid
Meaning
The state of being cold in manner or temperature.
Example
There was a distinct iciness in his voice.
Il y avait une froideur distincte dans sa voix.
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.