underexposed
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C1 adjective /ˌʌndərɪkˈspoʊzd/

underexposed

peu exposé, négligé
Meaning
insufficiently exposed to light (in photography) or not given enough attention
Example
The photo was underexposed and looked too dark.
La photo était sous-exposée et paraissait trop sombre.
A2 conjunction /ʌnˈlɛs/

unless

à moins que
Meaning
except if
Example
We won't go unless it stops raining.
Nous n'irons pas à moins qu'il ne cesse de pleuvoir.
B2 verb /ˌʌndərˈɛstɪmeɪt/

underestimate

sous-estimer
Meaning
To judge something as less important or smaller than it really is.
Example
Never underestimate the power of teamwork.
Ne sous-estimez jamais la puissance du travail d'équipe.
B2 adjective /ʌnˈtʃeɪndʒɪŋ/

unchanging

inchangé
Meaning
remaining the same over time; not changing
Example
Her love for her family was unchanging throughout the years.
Son amour pour sa famille est resté inchangé au fil des ans.
B2 noun ˌjuːtɪlaɪˈzeɪʃən

utilization

utilisation
Meaning
The action of making practical and effective use of something.
Example
Increased plastic utilization calls for better waste management.
L'augmentation de l'utilisation du plastique nécessite une meilleure gestion des déchets.
C1 verb /ˌʌndərˈvæljuː/

undervalue

sous-estimer
Meaning
To assign too low a value or importance to something or someone.
Example
She felt that her boss consistently undervalued her contributions.
Elle sentait que son patron ne valorisait pas constamment ses contributions.
B2 adverb /ʌnˈfɛərli/

unfairly

injustement
Meaning
In a manner that is not just, reasonable, or impartial
Example
He was treated unfairly by the committee.
Il a été traité injustement par le comité.
C1 adjective /ʌnˈbraɪdld/

unbridled

déraisonné
Meaning
Uncontrolled and unrestrained.
Example
The protesters showed unbridled enthusiasm for change.
Les manifestants ont montré un enthousiasme débridé pour le changement.
B2 adverb /ˈʌt.ə.li/

Utterly

totalement; absolument; complètement
Meaning
completely; absolutely; totally
Example
The movie was utterly boring and I fell asleep.
Le film était complètement ennuyeux et je me suis endormi.
B2 noun /ˈjuː.sɪdʒ/

Usage

utilisation
Meaning
the action of using something; the way in which words are used in a language
Example
The dictionary explains the correct usage of difficult words.
Le dictionnaire explique l'utilisation correcte des mots difficiles.
C2 verb /ʌnˈkaʊtʃ/

uncouch

retirer du canapé (usage rare)
Meaning
to remove from a couch or to release from being laid down (rare/archaic usage)
Example
The surgeon attempted to uncouch the cataract.
Le chirurgien a tenté d'enlever la cataracte.
B2 adjective /ˌʌnɪˈmædʒənəbəl/

Unimaginable

inimaginable
Meaning
impossible to conceive; beyond imagination
Example
The scale of destruction was unimaginable until we saw it firsthand.
L'échelle de la destruction était inimaginable jusqu'à ce que nous le voyions de nos propres yeux.
B1 verb /ʌnˈræp/

unwrap

déballer
Meaning
remove wrapping or covering from something; reveal something gradually or clearly
Example
She carefully unwrapped the gift with excitement.
Elle a déballé le cadeau avec précaution et excitation.
C2 verb /ˌʌn.dɪˈsiːv/

undeceive

désillusionner
Meaning
To free someone from a misconception or false belief.
Example
She tried to undeceive him about the false rumors.
Elle a essayé de le désillusionner au sujet des fausses rumeurs.
C1 adjective ʌnˈpær.ə.leld

Unparalleled

incomparable
Meaning
Having no equal; unmatched, peerless, and supreme in quality or achievement.
Example
The unparalleled beauty of the Taj Mahal amazes visitors.
La beauté incomparable du Taj Mahal émerveille les visiteurs.
B2 noun /ˈʌndərˌteɪkɪŋ/

undertaking

entreprise
Meaning
A task, project, or responsibility that someone agrees to do.
Example
Starting a new company is a difficult undertaking.
Lancer une nouvelle entreprise est une entreprise difficile.
B1 adjective /ʌnˈlaɪkli/

Unlikely

improbable; peu probable
Meaning
not likely to happen; improbable
Example
It's unlikely to rain today with such clear skies.
Il est peu probable qu'il pleuve aujourd'hui avec un ciel aussi dégagé.
C1 adjective /ˌʌnrɪˈkwaɪtɪd/

unrequited

non réciproque
Meaning
Not returned or reciprocated, especially in the context of love or affection.
Example
He suffered from unrequited love for years.
Il a souffert d'un amour non réciproque pendant des années.
A2 noun /ˌʌpˈsteəz/

Upstairs

étage supérieur
Meaning
on or to an upper floor of a building; the upper floor or floors
Example
She went upstairs to her bedroom to rest.
Elle est montée à l'étage pour se reposer.
C1 adjective /ʌnˈɜːrθli/

unearthly

surnaturel
Meaning
Strange or unnatural in a way that seems not of this world
Example
The forest was filled with an unearthly glow.
La forêt était remplie d'une lueur surnaturelle.
C2 adjective /ˌʌltrəˈmɒnteɪn/

ultramontane

partisan du Pape
Meaning
beyond the mountains, especially referring to support for the Pope over local church authority
Example
The debate highlighted the ultramontane position in church politics.
Le débat a mis en lumière la position ultramontaine dans la politique ecclésiastique.
A1 pronoun /ʌs/

us

nous
Meaning
used to refer to the speaker and one or more other people as the object of a verb or preposition
Example
She gave us a gift.
Elle nous a donné un cadeau.
C1 adjective /ˌʌnˈpɑr.də.nə.bəl/

Unpardonable

impardonnable
Meaning
too bad to be forgiven; inexcusable
Example
His betrayal of trust was an unpardonable offense.
Sa trahison était un délit impardonnable.
C2 adjective /ˈʌndjʊleɪtɪŋ/

undulating

ondulant
Meaning
Having a smoothly rising and falling form or motion like waves.
Example
We drove through undulating hills.
Nous avons conduit à travers des collines ondulantes.
C1 adjective ʌnˈskruːpjʊləs

unscrupulous

démoralisé
Meaning
Having or showing no moral principles; not honest or fair.
Example
Unscrupulous peers can lead adolescents to delinquency.
Les pairs démoralisés peuvent pousser les adolescents à la délinquance.
C2 noun /ˈʌn.dɚˌstɔː.ri/

understory

végétation inférieure
Meaning
The layer of vegetation beneath the main canopy of a forest.
Example
The understory of a rainforest is home to small mammals and insects.
La végétation inférieure d'une forêt tropicale est le foyer de petits mammifères et d'insectes.
B1 adjective /ʌnˈjuː.ʒu.əl/

Unusual

inhabituel; étrange;
Meaning
not typical; strange; different from what is normal
Example
She wore an unusual dress to the party.
Elle portait une robe inhabituelle à la fête.
C1 noun ˌʌndərˈprɪvəlɪdʒd ɡruːps

underprivileged groups

groupes défavorisés
Meaning
Groups of people who lack basic necessities or advantages that are available to other members of society.
Example
Underprivileged groups benefit from social initiatives.
Les groupes défavorisés bénéficient des initiatives sociales.
B2 adjective /ʌnˌkənˈfɜːmd/

Unconfirmed

non confirmé; non vérifié;
Meaning
not confirmed as true or definite; not verified or substantiated
Example
The report remains unconfirmed until we receive official verification.
Le rapport reste non confirmé jusqu'à ce que nous recevions la vérification officielle.
A1 noun /ˌjuːnɪˈvɜːrsɪti/

university

université
Meaning
an institution of higher education and research, which grants academic degrees
Example
She is studying law at the university.
Elle étudie le droit à l'université.
B2 adjective /ˌʌndɪˈstɜːrbd/

Undisturbed

ininterrompu
Meaning
not interrupted or interfered with; calm and peaceful
Example
She slept undisturbed for eight hours.
Elle a dormi huit heures sans être dérangée.
C2 adjective /juːˈbɪkwɪtəs/

ubiquitious

omniprésent
Meaning
Present, appearing, or found everywhere.
Example
Smartphones have become ubiquitous in modern society.
Les smartphones sont devenus omniprésents dans la société moderne.
C1 adjective /ˌʌnbɪˈkʌmɪŋ/

unbecoming

inapproprié
Meaning
Not proper or appropriate for a person; unsuitable.
Example
His rude behavior was unbecoming of a leader.
Son comportement grossier était inapproprié pour un leader.
B2 adverb /ʌnˈkɒnʃəsli/

unconsciously

inconsciemment
Meaning
without being aware of one's actions or surroundings
Example
She unconsciously tapped her foot to the rhythm of the music.
Elle tapotait inconsciemment son pied au rythme de la musique.
C2 adjective /juːˈʒʊəriəs/

usurious

usuraire
Meaning
Charging excessively high interest rates on loans.
Example
The bank was accused of offering loans at usurious rates.
La banque a été accusée d'offrir des prêts à des taux usuraires.
C1 adjective /ʌnˈsteɪtɪd/

unstated

non exprimé
Meaning
not expressed directly in words; implied or left unsaid
Example
The contract included several unstated expectations.
Le contrat incluait plusieurs attentes non exprimées.
B2 adjective /ʌnˈbæləns/

Unbalanced

déséquilibré; instable
Meaning
not balanced; lacking stability or equilibrium; mentally unstable
Example
The unbalanced table kept wobbling.
La table déséquilibrée continua à osciller.
C1 noun ˈʌp.raɪ.zɪŋ

uprising

soulèvement
Meaning
An act of resistance or rebellion; a revolt against an authority or government.
Example
The uprising marked the beginning of the revolution.
Le soulèvement a marqué le début de la révolution.
C2 verb /ˈʌndərˌmæn/

underman

manquer de personnel
Meaning
to supply with fewer workers or personnel than needed
Example
The hospital was undermanned during the flu outbreak.
L'hôpital était sous-effectif pendant l'épidémie de grippe.
B2 adjective /ˈʌt.moʊst/

Utmost

extrême; maximum
Meaning
greatest; most extreme; maximum possible
Example
She showed utmost care while handling the fragile items.
Elle a montré un soin extrême en manipulant les objets fragiles.
A2 adjective /ˈjuːʒəl/

usual

habituel
Meaning
habitually or typically occurring or done
Example
It’s our usual meeting spot.
C'est notre lieu de réunion habituel.
C1 adjective /ˌʌnfɔːrθˈkʌmɪŋ/

unforthcoming

réticent
Meaning
Not willing to talk or provide information; uncooperative.
Example
The witness was unforthcoming about what he had seen.
Le témoin était réticent à propos de ce qu'il avait vu.
C1 noun /ˈʌp.ʃɒt/

Upshot

résultat; conclusion
Meaning
the final result or outcome of a series of events; conclusion
Example
The upshot of the meeting was a decision to postpone the project.
L'issue de la réunion a été une décision de reporter le projet.
C2 adjective /ʌnˈflæpəbəl/

unflappable

imperturbable
Meaning
calm and composed, especially in difficult situations
Example
Despite the crisis, he remained unflappable and confident.
Malgré la crise, il est resté imperturbable et confiant.
A1 verb /ˌʌndərˈstænd/

understand

comprendre
Meaning
to know the meaning of something; to comprehend
Example
Do you understand the instructions?
Comprenez-vous les instructions ?
B2 adjective /ʌnˈberəbəl/

Unbearable

insupportable
Meaning
too painful, annoying, or unpleasant to tolerate; impossible to endure
Example
The heat in the desert was unbearable.
La chaleur dans le désert était insupportable.
C1 adjective ʌnˈtʃɑːtɪd

uncharted

inexploré
Meaning
Not mapped or surveyed; unknown or unexplored.
Example
The mission aimed to explore uncharted areas of the planet.
La mission visait à explorer des zones inexplorées de la planète.
C1 adjective /ʌnˈwɪtɪŋ/

unwitting

involontaire
Meaning
Not aware of what is happening; done without realizing.
Example
She became an unwitting participant in the scam.
Elle est devenue une participante involontaire dans l'escroquerie.
B2 noun /ʌnˈrest/

Unrest

agitation; troubles; désordre social ou politique
Meaning
a state of dissatisfaction and disturbance; social or political disorder
Example
The economic crisis led to widespread social unrest.
La crise économique a conduit à une agitation sociale généralisée.
B2 adjective /ʌnˈprɒf.ɪ.tə.bl̩/

Unprofitable

non rentable
Meaning
not yielding profit or gain; not producing financial benefit
Example
The unprofitable business was forced to close down after three years.
L'entreprise non rentable a été forcée de fermer après trois ans.
B1 noun /ˈjuːnjən/

Union

union
Meaning
the action of joining or combining; a political unit formed from separate states
Example
The union of the two companies created a powerful corporation.
L'union des deux entreprises a créé une puissante société.
C1 adjective /ʌnˈsəʊʃəl/

unsocial

asocial
Meaning
not enjoying the company of others; avoiding social interaction; contrary to social norms
Example
He prefers unsocial hours so he can work alone without interruptions.
Il préfère des horaires asociaux pour travailler seul.
B2 verb /ɜːrdʒ/

urge

exhorter
Meaning
to strongly encourage or try to persuade someone to do something
Example
Doctors urge patients to exercise regularly.
Les médecins exhortent les patients à faire de l'exercice régulièrement.
B1 adjective /ʌnˈeɪ.bəl/

Unable

incapable
Meaning
lacking the power, skill, or means to do something
Example
He was unable to attend the meeting.
Il était incapable d'assister à la réunion.
C1 adjective /ʌnˈsaɪtli/

unsightly

désagréable
Meaning
Unpleasant to look at; ugly.
Example
The garbage pile created an unsightly view in the park.
Le tas d'ordures a créé une vue désagréable dans le parc.
B1 adjective /ʌnˈwel/

Unwell

malade; indisposé
Meaning
not in good health; feeling sick or ill
Example
She has been feeling unwell since yesterday.
Elle se sent mal depuis hier.
B1 adjective /ʌnɪmˈplɔɪd/

Unemployed

chômeur
Meaning
without a job; not having paid work
Example
He has been unemployed for six months now.
Il est au chômage depuis six mois.
B1 noun /ʌnˈhæp.i.nəs/

unhappiness

malheur
Meaning
the state of being unhappy; sadness or dissatisfaction
Example
Her constant unhappiness affected everyone around her.
Son malheur constant affectait tous ceux qui l'entouraient.
C1 adjective ˌʌn.pəˈtɜːbd

unperturbed

pas inquiet ou perturbé par quelque chose ; calme et composé
Meaning
Not worried or disturbed by something; calm and composed.
Example
She remained unperturbed despite the challenges.
Elle est restée calme malgré les défis.
C1 noun /ˈʌp.raɪt.nəs/

Uprightness

rectitude; intégrité
Meaning
the quality of being honest and morally correct; integrity
Example
His uprightness in business dealings earned him great respect.
Sa droiture dans les affaires lui a valu un grand respect.
C2 noun juːˈbɪkwɪti

ubiquity

ubiquité
Meaning
The fact of appearing everywhere or of being very common.
Example
The ubiquity of smartphones has transformed communication.
L'ubiquité des smartphones a transformé la communication.
C1 adjective /ʌnˈʃeɪkən/

Unshaken

inquétable; ferme
Meaning
not disturbed or affected; firm and steady; unwavering
Example
Her faith remained unshaken despite all the challenges.
Sa foi est restée inébranlable malgré tous les défis.
C1 adjective /ʌnˈkɛmpt/

unkempt

désordonné
Meaning
Having an untidy or disheveled appearance.
Example
He looked unkempt after sleeping outdoors all night.
Il avait l'air désordonné après avoir dormi dehors toute la nuit.
C1 adjective /ʌnˈɡɑː.dɪd/

Unguarded

sans défense, négligent
Meaning
not protected or defended; careless about revealing private thoughts or information
Example
In an unguarded moment, she revealed her true feelings about the project.
Dans un moment sans défense, elle a révélé ses véritables sentiments à propos du projet.
B2 adjective /ʌnhaɪˈdʒiːnɪk/

Unhygienic

insalubre; manque de propreté
Meaning
not clean; lacking proper sanitation
Example
The restaurant was closed due to unhygienic conditions in the kitchen.
Le restaurant a été fermé en raison de conditions insalubres dans la cuisine.
C1 verb /ʌnˈrævəl/

unravel

démêler
Meaning
To undo twisted or knitted threads; to solve or explain something complicated.
Example
The detective worked hard to unravel the mystery.
Le détective a travaillé dur pour démêler le mystère.
B1 adjective /ʌnˈfɔːr.tʃən.ət/

Unfortunate

malheureux; regrettable
Meaning
having bad luck; regrettable or unlucky
Example
It was unfortunate that the meeting was cancelled at the last minute.
C'était malheureux que la réunion ait été annulée à la dernière minute.
B2 adjective /ʌnˈkɒn.ʃəs/

Unconscious

inconscient; évanoui
Meaning
not awake and aware of one's surroundings; done or existing without one realizing
Example
The patient was unconscious for several hours after the surgery.
Le patient était inconscient pendant plusieurs heures après l'opération.
B2 adjective /ʌnˈskɪld/

Unskilled

non qualifié; travailleur sans compétences
Meaning
lacking technical training or ability; not requiring special skills
Example
Many unskilled workers are looking for training opportunities.
De nombreux travailleurs non qualifiés recherchent des opportunités de formation.
C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

simple, sans décorations
Meaning
Plain and simple; not decorated.
Example
The room was unadorned, with only a table and a chair.
La pièce était simple, avec seulement une table et une chaise.
B2 adjective /ˌʌnrɪˈlaɪəbl/

Unreliable

non fiable; ne peut être fait confiance ou dépendre de
Meaning
not dependable; not able to be trusted or relied upon
Example
The old car is unreliable and breaks down frequently.
La vieille voiture est peu fiable et tombe souvent en panne.
C1 adjective /ʌnˈsɪvəl/

Uncivil

incivil; impoli;
Meaning
not polite or courteous; rude and discourteous in behavior
Example
His uncivil remarks during the meeting offended everyone present.
Ses remarques inciviles lors de la réunion ont offensé tout le monde présent.
C2 noun /ˈʌmbrɪdʒ/

umbrage

mécontentement, offense
Meaning
A feeling of resentment or offense.
Example
She took umbrage at his rude remark.
Elle s'est vexée par sa remarque grossière.
B2 adverb /ʌnˈkaɪndli/

unkindly

cruellement
Meaning
in a cruel, harsh, or unsympathetic manner
Example
She spoke unkindly about her colleague during the meeting.
Elle a parlé cruellement de son collègue pendant la réunion.
C1 adjective /ˌʌnˈɪntɪmeɪtɪŋ/

unintimating

sans indices
Meaning
Not giving a hint or suggestion; not indicating.
Example
His unintimating tone gave no clue of his true feelings.
Son ton sans indices n'a donné aucun indice de ses véritables sentiments.
B2 adjective /ʌnˈraɪp/

Unripe

immature
Meaning
not fully developed or matured; not ready to be eaten
Example
The unripe bananas will turn yellow in a few days.
Les bananes non mûres deviendront jaunes dans quelques jours.
C2 noun /ɜːrˈbænɪti/

urbanity

urbanité
Meaning
refined courtesy, elegance, and sophistication in manner
Example
Her urbanity made her popular among diplomats and leaders.
Son urbanité la rendait populaire parmi les diplomates et les dirigeants.
B2 adjective /ˌʌndɪˈzaɪərəbl/

Undesirable

indésirable; nuisible; désagréable
Meaning
not wanted or wished for; harmful or unpleasant
Example
The new policy had several undesirable consequences.
La nouvelle politique a eu plusieurs conséquences indésirables.
C1 adjective /ʌnˈfɔːltərɪŋ/

unfaltering

inébranlable
Meaning
Steady and resolute; not weakening or hesitating
Example
She continued with unfaltering determination.
Elle a continué avec une détermination inébranlable.
B2 adjective /ʌnˈiːkwəl/

Unequal

inégal; injuste;
Meaning
not the same in quantity, size, or value; not fair or just
Example
The distribution of wealth is unequal in many countries.
La distribution de la richesse est inégale dans de nombreux pays.
C1 adjective /ʌlˈtɪəriər/

ulterior

motif caché
Meaning
hidden or secret, often with a selfish motive
Example
He invited her with an ulterior motive.
Il l'a invitée avec un motif caché.
A2 adjective /ʌnˈhel.θi/

Unhealthy

malsain; pas sain
Meaning
harmful to health; not in good health; detrimental to well-being
Example
Eating too much fast food is unhealthy for your body.
Manger trop de fast food est malsain pour ton corps.
B2 adjective /ˌʌnkənˈvɛnʃənl/

unconventional

non conventionnel
Meaning
not based on or conforming to what is generally done or believed
Example
Her unconventional approach to teaching inspired her students to think creatively.
Son approche pédagogique non conventionnelle a inspiré ses élèves à penser de manière créative.
A2 preposition /əˈpɒn/

upon

sur
Meaning
on or immediately after
Example
Upon hearing the news, he rushed to the hospital.
En entendant la nouvelle, il se précipita à l'hôpital.
C1 adjective /ˌʌn.əˈdʌl.tə.reɪ.tɪd/

Unadulterated

pur
Meaning
not mixed or diluted with any different or extra elements; pure
Example
She felt unadulterated joy when she heard the news.
Elle a ressenti une joie pure lorsqu'elle a entendu la nouvelle.
B2 adverb /ʌnˈsɜːrtənli/

uncertainly

avec incertitude
Meaning
in a way that shows doubt or lack of certainty
Example
She glanced uncertainly at the complicated instructions.
Elle a regardé les instructions compliquées avec incertitude.
B1 adjective /juːˈnaɪtɪd/

United

unis; ensemble; d'accord
Meaning
joined together for a common purpose; in agreement
Example
The team was united in their goal to win.
L'équipe était unie dans son objectif de gagner.
C1 adjective /ˌʌnɪmˈplɔɪəbəl/

unemployable

inapte à l'emploi
Meaning
Not able to be employed; lacking the skills or qualities necessary for employment
Example
Due to his criminal record, he was considered unemployable in most companies.
En raison de son casier judiciaire, il était considéré comme inapte à l'emploi dans la plupart des entreprises.
B2 adjective /ʌnəˈfreɪd/

unafraid

intrépide
Meaning
Not feeling fear; brave or courageous
Example
She walked into the dark room, unafraid of what might be inside.
Elle est entrée dans la pièce sombre, intrépide de ce qui pourrait être à l'intérieur.
B1 adjective /ʌnˈplɛz.ənt/

Unpleasant

désagréable
Meaning
not giving or causing pleasure; disagreeable
Example
The medicine had an unpleasant taste.
Le médicament avait un goût désagréable.
C1 adjective /ˌjuːnɪˈsɛljʊlər/

unicellular

unicellulaire
Meaning
Consisting of a single cell.
Example
Amoebas are unicellular organisms.
Les amibes sont des organismes unicellulaires.
C2 noun /ˈɜːrtʃɪn/

urchin

gamin des rues
Meaning
a mischievous or poorly dressed child, often from the streets
Example
The ragged urchins played by the riverbank.
Les gamins en haillons jouaient au bord de la rivière.
B2 noun /ˌʌnəˌveɪləˈbɪləti/

unavailability

indisponibilité
Meaning
The state of being not available or not accessible.
Example
The unavailability of the manager caused a delay in the project.
L'indisponibilité du gestionnaire a causé un retard dans le projet.
B2 adjective /ʌnˈsuːtəbl/

Unsuitable

inapproprié; inapte
Meaning
not fitting or appropriate for a particular purpose or situation
Example
This formal dress is unsuitable for a casual beach party.
Cette robe formelle est inappropriée pour une fête de plage décontractée.
A2 noun /ˈjuːnɪt/

unit

unité
Meaning
an individual thing or person regarded as a single and complete entity
Example
Each unit in the production line is carefully tested.
Chaque unité de la ligne de production est soigneusement testée.
A2 noun /ˈʌndərwɛr/

Under wear

sous-vêtements
Meaning
clothing worn under other clothes, next to the skin
Example
She bought new underwear from the department store.
Elle a acheté de nouveaux sous-vêtements au magasin.
C1 verb /ˌʌndərˈlaɪ/

underlie

sous-tendre
Meaning
to be the hidden cause or basis of something
Example
Strong cultural traditions underlie the community's practices.
De fortes traditions culturelles sous-tendent les pratiques de la communauté.
B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

invraisemblable
Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
Son excuse pour être en retard était complètement invraisemblable.
C1 adjective ʌnˈmætʃt

unmatched

incomparable
Meaning
Not equaled or rivaled by any other; without equal.
Example
The freedom fighters showed unmatched bravery.
Les combattants de la liberté ont montré un courage incomparable.
B2 verb /ˌʌndərˈɡoʊ/

undergo

subir
Meaning
to go through something, especially something unpleasant or difficult
Example
She had to undergo surgery to recover.
Elle a dû subir une chirurgie pour se rétablir.
C2 noun /juːˈkeɪs/

ukase

décret
Meaning
An authoritative decree or order, especially one issued by a sovereign or government.
Example
The czar issued a ukase restricting the freedom of the press.
Le tsar a émis un décret restreignant la liberté de la presse.
C2 adjective /ʌnˈkɒnʃənəbl/

unconscionable

injustifiable
Meaning
shockingly unfair or unreasonable
Example
The company made unconscionable profits from the crisis.
L'entreprise a réalisé des bénéfices injustifiables pendant la crise.
C1 adjective /juːˈbɪkwɪtəs/

ubiquitous

omniprésent
Meaning
Existing or being everywhere at the same time.
Example
Social media has become ubiquitous among young people.
Les médias sociaux sont devenus omniprésents parmi les jeunes.
B2 verb /ʌnˈveɪl/

unveil

dévoiler
Meaning
to reveal or disclose something, especially in a formal manner
Example
The company will unveil a new product next week.
L'entreprise dévoilera un nouveau produit la semaine prochaine.
C1 adjective /ʌnˈhoʊli/

Unholy

impie; pervers; profane
Meaning
wicked; sinful; profane
Example
The unholy alliance between the two companies caused public outrage.
L'alliance impie entre les deux entreprises a provoqué un outrage public.
B2 adjective /ʌnˈbiːtən/

Unbeaten

invaincu; non défait
Meaning
not defeated; having never lost; undefeated
Example
The team remains unbeaten this season.
L'équipe reste invaincue cette saison.
C1 adjective /ʌnˈtɛnəbl/

untenable

intenable
Meaning
not able to be maintained or defended against attack or objection
Example
The politician resigned when his position became untenable.
Le politicien a démissionné lorsque sa position est devenue intenable.
C2 adjective /ˌʌnsɛrəˈmoʊniəs/

unceremonious

sans cérémonie/rude
Meaning
Done without formality or courtesy; abrupt or rude.
Example
He made an unceremonious exit from the party.
Il a fait une sortie sans cérémonie de la fête.
B1 adjective /ˌʌnsəkˈsesfl/

Unsuccessful

échoué; raté;
Meaning
not achieving desired aims or results; failing to accomplish a purpose
Example
His unsuccessful attempt to climb the mountain left him disappointed.
Sa tentative échouée de gravir la montagne l'a laissé déçu.
B1 noun /ˈjuːs.fəl.nəs/

Usefulness

utilité
Meaning
the quality of being useful; practical value or helpfulness
Example
The usefulness of this tool became apparent during the project.
L'utilité de cet outil est devenue évidente pendant le projet.
B1 adjective /ʌnˈpɒpjʊlə/

unpopular

impopulaire
Meaning
not liked or supported by many people
Example
The decision was unpopular with the public.
La décision était impopulaire auprès du public.
B1 adjective /ˌʌnɪkˈspektɪd/

Unexpected

inattendu; surprenant
Meaning
not expected or anticipated; surprising
Example
The unexpected news left everyone speechless.
Les nouvelles inattendues ont laissé tout le monde sans voix.
C2 adjective /ʌnəˈpiːzd/

unappeased

insatisfait
Meaning
Not satisfied or calmed; still feeling discontent or anger
Example
Despite the apology, she remained unappeased.
Malgré les excuses, elle est restée insatisfaite.
B2 adjective /ʌnˈbaɪəst/

unbiased

impartiale
Meaning
Not showing prejudice; impartial and fair.
Example
The report gave an unbiased view of the situation.
Le rapport a donné un point de vue impartial de la situation.
C1 adjective /ʌnˈseɪvəri/

unsavory

désagréable
Meaning
Disagreeable, unpleasant, or morally offensive.
Example
The politician was linked to an unsavory scandal.
Le politicien était lié à un scandale désagréable.
B1 adjective /ʌnˈfrɛndli/

unfriendly

peu aimable
Meaning
not kind or welcoming; hostile or cold in behavior or attitude
Example
The shop owner seemed unfriendly to new customers.
Le propriétaire du magasin semblait peu aimable envers les nouveaux clients.
B2 adjective /ˌʌndɪˈveləpt/

Undeveloped

non développé; immature; primitif
Meaning
not yet developed; immature or primitive
Example
The undeveloped land was later turned into a park.
Le terrain non développé a été ensuite transformé en un parc.
B2 adjective /ʌnˈdɪvaɪdɪd/

Undivided

Indivisé; complet; pas séparé ou divisé
Meaning
whole; complete; not separated or split
Example
The team showed undivided attention to the coach's instructions.
L'équipe a montré une attention indivisée aux instructions de l'entraîneur.
B2 adjective /ʌnˈɡreɪt.fəl/

Ungrateful

ingrat
Meaning
not feeling or showing thanks for something done or given; not appreciating kindness
Example
She felt he was ungrateful for all the help she had given him.
Elle sentit qu'il était ingrat pour toute l'aide qu'elle lui avait donnée.
C2 adjective /ʌnˈsʌlid/

unsullied

immaculé
Meaning
not spoiled or made impure; perfectly clean or pure
Example
His reputation remained unsullied despite the accusations.
Sa réputation est restée immaculée malgré les accusations.
B1 adjective /ʌnˈedjʊkeɪtɪd/

Uneducated

analphabète; non éduqué
Meaning
lacking education; not having received formal schooling or training
Example
Many uneducated workers struggle to find well-paying jobs.
Beaucoup de travailleurs analphabètes ont du mal à trouver des emplois bien rémunérés.