Unmanageable
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C1 adjective /ʌnˈmænɪdʒəbəl/

Unmanageable

ingérable; hors de contrôle
Meaning
difficult or impossible to control or handle
Example
The large class became unmanageable without proper supervision.
La grande classe est devenue ingérable sans une supervision adéquate.
C1 noun /ˌʌl.tɪˈmeɪ.təm/

Ultimatum

ultimatum
Meaning
a final demand or statement of terms, the rejection of which will result in retaliation
Example
The boss gave him an ultimatum: improve or be fired.
Le patron lui a donné un ultimatum : améliorez-vous ou vous serez renvoyé.
C1 verb /ʌnˈkɔrk/

uncork

déboucher
Meaning
To remove the cork from a bottle; to open a bottle, especially of wine
Example
He uncorked the wine and poured a glass for everyone.
Il a débouché le vin et a servi un verre à tout le monde.
C2 noun /ˈʌndərlɪŋ/

underling

subordonné
Meaning
a person of low rank or importance; a subordinate
Example
The manager ordered his underlings to finish the task quickly.
Le directeur a ordonné à ses subordonnés de terminer rapidement la tâche.
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.
C1 adjective /ˌʌnɪˈkwɪvəkəl/

unequivocal

sans équivoque
Meaning
Leaving no doubt; clear and unambiguous
Example
She gave an unequivocal answer to the question.
Elle a donné une réponse sans équivoque à la question.
C1 adjective ʌnˈwɔːr.rən.tɪd

unwarranted

injustifié
Meaning
Not justified or necessary; without good reason.
Example
His anger toward the staff was completely unwarranted.
Sa colère envers le personnel était complètement injustifiée.
C1 adjective /ˌjuːnɪˈlætərəl/

Unilateral

unilatéral
Meaning
one-sided; involving only one party
Example
The country made a unilateral decision to withdraw from the treaty.
Le pays a pris une décision unilatérale de se retirer du traité.
C1 adjective /ʌnˈkleɪmd/

Unclaimed

non réclamé; non demandé; abandonné ou sans propriétaire
Meaning
not claimed by anyone; not demanded or requested; abandoned or ownerless
Example
The unclaimed luggage was stored in the airport's lost property department.
Les bagages non réclamés ont été stockés dans le département des objets trouvés de l'aéroport.
C2 adjective /ˌʌn.təˈwɔːrd/

untoward

inattendu
Meaning
Unexpected and inappropriate or inconvenient.
Example
The meeting ended without any untoward incidents.
La réunion s'est terminée sans incidents inattendus.
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.
B2 adjective /ˌʌndɪˈsaɪdɪd/

Undecided

indécis; incertain
Meaning
not having made a decision; uncertain
Example
She was undecided about which college to attend.
Elle était indécise sur quel collège fréquenter.
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.
B1 verb /ˈʌpˌɡreɪd/

upgrade

mettre à jour
Meaning
to raise something to a higher standard, improve
Example
We decided to upgrade the software to the latest version.
Nous avons décidé de mettre à jour le logiciel vers la dernière version.
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.
C1 noun /ˈʌp.rɔːr/

Uproar

tumulte; agitation; bruit
Meaning
a loud and emotional noise or disturbance; public outcry
Example
The announcement caused an uproar among the students.
L'annonce a provoqué un tumulte parmi les étudiants.
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.
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.
C1 adverb /ˌʌnkənˈvɛnʃənəli/

unconventionally

de manière non conventionnelle
Meaning
in a way that is not based on or conforming to accepted standards or norms
Example
She dresses unconventionally, mixing bold colors and patterns that surprise everyone.
Elle s'habille de manière non conventionnelle, mélangeant des couleurs et des motifs audacieux qui surprennent tout le monde.
A1 interjection /ʌ/

uh

euh
Meaning
a sound people make when they hesitate or are unsure what to say next.
Example
Uh, I’m not sure if that’s the right answer.
Euh, je ne suis pas sûr si c'est la bonne réponse.
C1 adjective /ʌnˈtoʊld/

Untold

innombrable; infini
Meaning
very great in amount or degree; countless; immeasurable
Example
The earthquake caused untold damage to the city.
Le tremblement de terre a causé des dommages innombrables à la ville.
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.
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.
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.
B2 noun /ʌnəˈbɪləti/

unability

incapacité
Meaning
the state of being unable to do something; incapacity
Example
His unability to solve the problem caused delays in the project.
Son incapacité à résoudre le problème a causé des retards dans le projet.
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 /ʌnˈbreɪkəbəl/

Unbreakable

qui ne peut être brisé ou endommagé ; très fort et durable
Meaning
not able to be broken or damaged; very strong and durable
Example
Their friendship formed an unbreakable bond.
Leur amitié a formé un lien incassable.
B2 noun /ˌʌndəˈɡrædʒuət/

undergraduate

étudiant de premier cycle
Meaning
a student who has not yet earned a bachelor's degree
Example
She is an undergraduate studying computer science.
Elle est une étudiante de premier cycle étudiant en informatique.
C1 adjective /ˌʌnprɪˈtɛnʃəs/

unpretentious

modeste
Meaning
modest; not attempting to impress others with appearance or importance
Example
She lives in an unpretentious home but is very happy.
Elle vit dans une maison modeste mais est très heureuse.
C1 verb /ʌnˈmɑːsk/

unmask

démasquer
Meaning
to remove a mask or covering; to reveal the true identity, nature, or intentions of someone or something
Example
The investigation helped unmask the real culprit behind the crime.
L’enquête a permis de démasquer le vrai coupable du crime.
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.
A1 verb /juːz/

use

utiliser
Meaning
to employ something for a purpose; to take advantage of
Example
I use my computer for work and entertainment.
J'utilise mon ordinateur pour travailler et me divertir.
C2 noun /ˈjuːʒəri/

usury

usure
Meaning
The practice of lending money at unreasonably high interest rates.
Example
The law strictly prohibits usury.
La loi interdit strictement l'usure.
B1 adjective /ʌnˈseɪf/

Unsafe

dangereux; risqué;
Meaning
involving or causing danger or risk; not protected from harm
Example
It is unsafe to walk alone in this neighborhood at night.
Il est dangereux de marcher seul dans ce quartier la nuit.
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.
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.
C1 adjective /ʌnˈskeɪðd/

unscathed

sain et sauf
Meaning
Without suffering any injury, damage, or harm.
Example
She escaped from the accident unscathed.
Elle a échappé à l'accident saine et sauve.
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.
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.
C2 verb /ʌpˈbreɪd/

upbraid

réprimander
Meaning
To scold or criticize someone harshly.
Example
The teacher upbraided the student for being late again.
Le professeur a réprimandé l'élève pour être encore en retard.
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.
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.
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.
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.
B2 adjective /ʌnˈɑːrmd/

unarmed

désarmé
Meaning
Not equipped with or carrying weapons
Example
The police found the suspect unarmed during the search.
La police a trouvé le suspect désarmé pendant la fouille.
C2 adjective /ˌʌn.rɪˈdʒɛn.ər.ət/

unregenerate

intransigeant
Meaning
Not reformed or showing no signs of change; stubbornly refusing to reform or repent.
Example
He remained an unregenerate opponent of progress.
Il est resté un opposant intransigeant du progrès.
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 /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.
C2 verb /ʌpˈhiːv/

upheave

soulever
Meaning
to lift or raise something forcefully; to cause to rise suddenly
Example
The workers had to upheave the heavy stone to clear the path.
Les travailleurs ont dû soulever la grosse pierre pour dégager le chemin.
C2 adjective /ˌʌnpriːpəˈzɛsɪŋ/

unprepossessing

peu attrayant
Meaning
not attractive or appealing in appearance
Example
Despite his unprepossessing looks, he was very kind and intelligent.
Malgré son apparence peu attrayante, il était très gentil et intelligent.
A2 adjective /ˈjuːs.ləs/

Useless

inutile
Meaning
having no beneficial purpose; not useful
Example
This broken computer is completely useless.
Cet ordinateur cassé est complètement inutile.
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 adjective /ʌnˈkwaɪ.ət/

Unquiet

agité; anxieux; perturbé
Meaning
restless; unable to remain still or quiet; anxious or troubled
Example
She spent an unquiet night worrying about the exam results.
Elle a passé une nuit agitée à s'inquiéter des résultats de l'examen.
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 noun ˈjuːnəti

unity

unité
Meaning
The state of being united or joined as a whole.
Example
Unity among people led to victory.
L'unité entre les gens a conduit à la victoire.
C1 adjective /ʌnˈtʃælɪndʒd/

Unchallenged

incontesté; accepté sans opposition; sans rival
Meaning
not disputed or questioned; accepted without opposition; having no rival
Example
He remained the unchallenged champion for five years.
Il est resté le champion incontesté pendant cinq ans.
A2 verb /ʌpˈset/

upset

contrarier
Meaning
to make someone worried, sad, or angry; to disturb
Example
The bad news upset everyone.
Les mauvaises nouvelles ont upset tout le monde.
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.
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 verb /ʌpˈhoʊld/

uphold

maintenir
Meaning
to maintain or support a principle, law, or decision
Example
The judge promised to uphold justice at all costs.
Le juge a promis de maintenir la justice à tout prix.
C1 adjective /ˌʌndərˈsteɪtɪd/

understated

sous-estimé
Meaning
Presented in a subtle and restrained way.
Example
She wore an elegant but understated dress.
Elle portait une robe élégante mais sous-estimée.
B1 adjective /ʌnˈfeər/

Unfair

injuste; déloyal;
Meaning
not right or just; treating people in a way that favors some over others
Example
It's unfair to blame her for something she didn't do.
C'est injuste de la blâmer pour quelque chose qu'elle n'a pas fait.
B1 noun /ˈjuːnɪvɜːrs/

Universe

univers
Meaning
all existing matter and space; the cosmos
Example
Scientists study the universe to understand its mysteries.
Les scientifiques étudient l'univers pour comprendre ses mystères.
B1 adjective /ˈɜːrdʒənt/

Urgent

urgent
Meaning
requiring immediate action or attention; pressing
Example
The patient needs urgent medical attention.
Le patient a besoin d'une attention médicale urgente.
C1 adjective /ʌnˈspiːkəbl/

unspeakable

indicible
Meaning
too bad or shocking to be expressed in words
Example
The survivors endured unspeakable horrors during the war.
Les survivants ont enduré des horreurs indicibles pendant la guerre.
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.
C2 adjective /ˈʌndjʊləs/

undulous

ondulé
Meaning
Having a wavy surface or form.
Example
The artist painted the undulous sea at sunset.
L'artiste a peint la mer ondulée au coucher du soleil.
B2 adjective /ʌnˈfeɪ.vər.ə.bəl/

Unfavourable

défavorable; adverse
Meaning
not helpful or advantageous; adverse
Example
The weather conditions were unfavourable for our outdoor event.
Les conditions météorologiques étaient défavorables pour notre événement extérieur.
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 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.
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.
B2 adjective /ʌnprɪˈpɛrd/

Unprepared

impréparé
Meaning
not ready or able to deal with something
Example
He was unprepared for the difficult exam.
Il était mal préparé pour l'examen difficile.
B2 adjective /ʌnˈiːvən/

Uneven

irrégulier; rugueux
Meaning
not level or smooth; not regular or consistent
Example
The road was uneven and full of potholes.
La route était irrégulière et pleine de nids-de-poule.
A1 adverb /ʌp/

up

en haut
Meaning
towards a higher position or level
Example
He climbed up the ladder quickly.
Il a monté rapidement l'échelle.
B2 adjective /ˈʌt.ɚ/

Utter

complet; absolu; total
Meaning
complete; absolute; total
Example
The movie was an utter disaster at the box office.
Le film était un désastre total au box-office.
B2 verb /ˌʌndərˈmaɪn/

undermine

saper
Meaning
to gradually weaken or damage something or someone
Example
Constant criticism can undermine a child's confidence.
Les critiques constantes peuvent saper la confiance d'un enfant.
C1 verb /ˌʌndərˈsteɪt/

understate

minimiser
Meaning
To describe something as being less important or serious than it really is.
Example
He tends to understate his achievements.
Il a tendance à minimiser ses réalisations.
C1 adjective /ʌnˈdɔːntɪd/

Undaunted

Intrépide; courageux; indomptable;
Meaning
not intimidated or discouraged by difficulty, danger, or disappointment
Example
Despite the setbacks, she remained undaunted in pursuing her goals.
Malgré les revers, elle est restée intrépide dans la poursuite de ses objectifs.
C1 adverb /ʌnˈnætʃrəli/

unnaturally

d'une manière anormale
Meaning
in a way that is not natural or normal; excessively or strangely
Example
He smiled unnaturally, making everyone feel uncomfortable.
Il a souri d'une manière anormale, mettant tout le monde mal à l'aise.
B1 adverb /ʌnˈfɔːrtʃənətli/

Unfortunately

Malheureusement
Meaning
used to express regret or disappointment about something
Example
Unfortunately, the weather was bad for our picnic.
Malheureusement, le temps était mauvais pour notre pique-nique.
B2 adjective /ʌnˈkɒmən/

uncommon

inhabituel
Meaning
rare, unusual, or remarkable
Example
It is uncommon to see snow in this region.
Il est rare de voir de la neige dans cette région.
B2 adjective /ʌnˈiːzi/

Uneasy

inquiet; anxieux; mal à l'aise
Meaning
worried; anxious; uncomfortable; restless
Example
She felt uneasy about walking alone at night.
Elle se sentait inquiète de marcher seule la nuit.
B1 verb /ʌnˈpæk/

unpack

déballer
Meaning
to remove items from a container; to explain or analyze something in detail
Example
After arriving home, she began to unpack her suitcase.
Après être rentrée à la maison, elle a commencé à déballer sa valise.
C1 adjective /ʌnˈtʌtʃəbəl/

Untouchable

intouchable; au-delà de la critique ou de l'attaque
Meaning
not able to be touched or affected; beyond criticism or attack
Example
The CEO seemed untouchable despite the scandal.
Le PDG semblait intouchable malgré le scandale.
C1 adjective /ˌʌndərˈhændɪd/

underhanded

sournois
Meaning
acting or done in a dishonest or secret way
Example
They exposed the company's underhanded dealings with its suppliers.
Ils ont exposé les pratiques sournoises de l'entreprise avec ses fournisseurs.
C2 adjective /ˌʌnɪmˈpiːtʃəbl/

unimpeachable

irréprochable
Meaning
Not able to be doubted, questioned, or criticized; completely trustworthy.
Example
She is known for her unimpeachable honesty.
Elle est connue pour son honnêteté irréprochable.
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.
A2 noun /ʌmˈbrɛlə/

umbrella

parapluie
Meaning
A device used for protection against rain or sun, typically consisting of a collapsible canopy mounted on a central rod.
Example
She opened her umbrella as it started to rain.
Elle a ouvert son parapluie quand il a commencé à pleuvoir.
C1 noun /ʌnɪmˈpɔːrtəns/

unimportance

insignifiance
Meaning
the state or quality of being insignificant or not important
Example
He dismissed the issue with a sense of unimportance.
Il a rejeté la question avec un sentiment de non-importance.
C1 noun /ʌpˈhiːvəl/

upheaval

bouleversement
Meaning
a violent or sudden change or disruption to something
Example
The company faced a major upheaval after the sudden resignation of its CEO.
L'entreprise a connu un grand bouleversement après la démission soudaine de son PDG.
C2 adverb /ʌnˈɜːrɪŋli/

unerringly

sans erreur
Meaning
Without making any mistakes; always accurate
Example
The archer aimed unerringly at the target.
L'archer a visé sans erreur la cible.
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 adjective /ʌnˈlɔːfl/

Unlawful

illégal; illicite
Meaning
not authorized by law; illegal
Example
The court declared the search unlawful.
Le tribunal a déclaré que la perquisition était illégale.
C1 adjective /ˌʌnsəˈfɪstɪˌkeɪtɪd/

unsophisticated

non sophistiqué
Meaning
Lacking worldly experience, refinement, or complexity.
Example
The villagers led an unsophisticated but happy life.
Les villageois menaient une vie non sophistiquée mais heureuse.
B2 noun /ˈʌndərkləʊðz/

underclothes

sous-vêtements
Meaning
Clothing worn beneath outer clothes, such as underwear or lingerie
Example
He folded his underclothes neatly before packing them.
Il a plié ses sous-vêtements soigneusement avant de les ranger.
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 adverb /ʌnˈnesəserəli/

Unnecessarily

inutillement
Meaning
to a greater extent than is needed; without necessity
Example
Don't worry unnecessarily about the exam.
Ne t'inquiète pas inutilement pour l'examen.
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.
B2 noun /ʌnˈkɒnʃəsnəs/

unconsciousness

inconscience
Meaning
the state of being unaware of and unable to respond to one's surroundings
Example
After the accident, he was in a state of unconsciousness for several hours.
Après l'accident, il était dans un état d'inconscience pendant plusieurs heures.
C1 adjective /ʌnˈvɔɪst/

unvoiced

non exprimé
Meaning
not expressed in speech; in phonetics, a sound produced without vocal cord vibration
Example
The student kept her opinion unvoiced during the meeting.
L'étudiante a gardé son opinion non exprimée pendant la réunion.
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.
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.
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.
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 adjective /ˌʌnɪnˈhɪbɪtɪd/

uninhibited

désinhibé
Meaning
Not restrained or restricted; free in behavior or expression.
Example
She gave an uninhibited laugh at the joke.
Elle a éclaté d'un rire désinhibé à la blague.
B1 adjective /ˈjuːnɪfɔːrm/

Uniform

uniforme
Meaning
consistent; identical; standardized
Example
All students must wear a uniform to school.
Tous les étudiants doivent porter un uniforme à l'école.
B2 adjective /ʌnˈwaɪz/

unwise

imprudent
Meaning
Showing poor judgment; not sensible or prudent.
Example
It would be unwise to invest all your money in one company.
Il serait imprudent d'investir tout votre argent dans une seule entreprise.
C2 adjective /ˌʌnɪkˈsɛpʃənəbl/

unexceptionable

irréprochable
Meaning
Not open to objection; acceptable and unobjectionable
Example
His behavior was unexceptionable throughout the event.
Son comportement était irréprochable tout au long de l'événement.
C1 adjective /ˌʌnbɪˈliːvɪŋ/

unbelieving

incrédule
Meaning
Not willing or able to believe; skeptical or doubtful
Example
She gave him an unbelieving look when he claimed to have met a celebrity.
Elle lui a lancé un regard incrédule lorsqu'il a affirmé avoir rencontré une célébrité.
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.
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.
A2 noun /ˌʌndərˈstændɪŋ/

understanding

compréhension
Meaning
the ability to grasp the meaning, significance, or nature of something
Example
Her understanding of the issue was impressive.
Sa compréhension du problème était impressionnante.
B2 adjective /ˌʌnəˈveɪləbəl/

unavailable

indisponible
Meaning
Not able to be obtained, reached, or used; not present or accessible.
Example
The manager was unavailable to take calls during the meeting.
Le directeur n'était pas disponible pour répondre aux appels pendant la réunion.
C1 adjective /ʌnˈθɪŋkɪŋ/

unthinking

irréfléchi
Meaning
done without careful thought; automatic or thoughtless
Example
His unthinking remark hurt her feelings.
Sa remarque irréfléchie a blessé ses sentiments.
B2 noun /ˈɜː.dʒən.si/

Urgency

urgence
Meaning
the quality of requiring immediate action or attention; pressing importance
Example
The urgency of the situation required immediate medical attention.
L'urgence de la situation nécessitait une attention médicale immédiate.
C1 noun /ˌʌnprɪˈdɪktəˌbɪləti/

unpredictability

imprévisibilité
Meaning
The quality of being impossible to predict or anticipate.
Example
The unpredictability of the weather made the trip uncertain.
L'imprévisibilité du temps a rendu le voyage incertain.
C1 noun /ˌʌnriˈælɪti/

unreality

irréalité
Meaning
the state or quality of being unreal; lack of reality or truth
Example
The dreamlike setting gave the story a sense of unreality.
Le décor onirique a donné à l’histoire un sentiment d’irréalité.
B2 adjective /ʌn.rɪˈleɪ.tɪd/

Unrelated

sans rapport; non lié
Meaning
having no connection or relationship; not connected by family ties
Example
The two incidents were completely unrelated to each other.
Les deux incidents étaient complètement sans rapport entre eux.
A2 verb /ʌpˈdeɪt/

update

mettre à jour
Meaning
to make something more modern or current; to provide new information
Example
Please update your software regularly.
Veuillez mettre à jour votre logiciel régulièrement.
C1 adjective /ʌnˈruːli/

Unruly

désordonné; indiscipliné;
Meaning
difficult to control or manage; disorderly and disruptive
Example
The unruly crowd refused to follow the safety instructions.
La foule indisciplinée a refusé de suivre les instructions de sécurité.
B1 preposition, adverb, adjective /ˌʌndərˈniːθ/

underneath

sous, en dessous
Meaning
Located directly below or beneath something
Example
The keys were hidden underneath the pile of papers.
Les clés étaient cachées sous la pile de papiers.