Unlawful
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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.
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.
C1 adjective /ˌjuːnɪˈsɛljʊlər/

unicellular

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

unfrock

dévêtir un prêtre de sa position
Meaning
To remove a priest from his position or deprive someone of a rank.
Example
The corrupt priest was unfrocked after the investigation.
Le prêtre corrompu a été défroqué après l'enquête.
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.
A2 adjective /ʌnˈlʌki/

Unlucky

malchanceux; de mauvaise chance
Meaning
having bad luck; unfortunate
Example
He was unlucky to miss the winning shot.
Il était malchanceux de manquer le tir gagnant.
B2 adjective /ʌnˈkwɒl.ɪ.faɪd/

Unqualified

incompétent; non qualifié;
Meaning
not having the necessary skills or qualifications; complete or absolute
Example
He was unqualified for the engineering position due to lack of experience.
Il était inqualifié pour le poste d'ingénieur en raison de son manque d'expérience.
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.
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 adjective /ˈʌpər/

upper

supérieur
Meaning
higher in position or rank
Example
The upper floor of the building is under renovation.
Le étage supérieur du bâtiment est en rénovation.
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.
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 verb /ʌnˈnɜːrv/

unnerve

perdre confiance
Meaning
to make someone lose confidence, courage, or composure
Example
The hostile questions began to unnerve the witness.
Les questions hostiles ont commencé à déstabiliser le témoin.
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.
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 /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.
B1 adjective /ˌʌndərˈstændəbl/

understandable

compréhensible
Meaning
Able to be understood; reasonable or justifiable.
Example
Her reaction was understandable given the situation.
Sa réaction était compréhensible étant donné la situation.
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.
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.
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.
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 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.
B1 verb /juˈnaɪt/

unite

unir
Meaning
to join together or combine; to bring people or things together
Example
The crisis helped unite the community.
La crise a aidé à unir la communauté.
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.
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.
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 /ʌnˈhɛlpfəl/

unhelpful

inutile
Meaning
not providing help or support; making a situation harder rather than easier
Example
His unhelpful attitude slowed down the entire project.
Son attitude inutile a ralenti tout le projet.
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.
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.
C1 verb /ˌʌn.dəˈtʃɑːrdʒ/

undercharge

facturer moins
Meaning
To charge less than the correct or fair amount.
Example
The shopkeeper accidentally undercharged me for the groceries.
Le commerçant m'a accidentellement facturé moins pour les courses.
B2 adjective /ʌnˈtʃeɪndʒəbəl/

Unchangeable

inchangable; fixe;
Meaning
not able to be changed or altered; fixed and permanent
Example
The laws of physics are unchangeable principles that govern the universe.
Les lois de la physique sont des principes inchangables qui gouvernent l'univers.
C2 adjective /ʌnˈwəʊntɪd/

unwonted

inhabituel
Meaning
Unusual, uncommon, or out of the ordinary.
Example
She spoke with an unwonted gentleness that surprised everyone.
Elle parla avec une douceur inhabituelle qui surprit tout le monde.
C1 adjective /ˌʌnfɔːrˈsiːn/

unforeseen

Meaning
Not anticipated or predicted; unexpected.
Example
The project faced unforeseen challenges that delayed its completion.
B2 adverb /ˈʌltəmətli/

ultimately

finalement
Meaning
in the end, after everything else
Example
Ultimately, we decided to go ahead with the project.
Finalement, nous avons décidé de poursuivre le projet.
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.
C1 adjective /ˌʌnəˈsjuːmɪŋ/

unassuming

modeste
Meaning
Not pretentious or arrogant; modest.
Example
Despite his success, he remained unassuming and humble.
Malgré son succès, il est resté modeste et humble.
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.
B1 adjective /ʌnˈlaɪk/

Unlike

différent; pas similaire
Meaning
different from; not similar to
Example
Unlike his brother, he prefers quiet activities.
Contrairement à son frère, il préfère les activités calmes.
B2 adverb /ʌnˈdaʊtɪdli/

undoubtedly

sans aucun doute
Meaning
without a doubt, certainly
Example
He is undoubtedly the best player on the team.
Il est sans aucun doute le meilleur joueur de l'équipe.
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.
C2 noun /ˌjuːnɪˈtɛəriən/

unitarian

unitaire
Meaning
A person who believes that God exists as one entity rather than as a Trinity; a member of a religious denomination that emphasizes individual freedom of belief.
Example
The Unitarian church is known for its inclusive and open-minded approach.
L'église unitaire est connue pour son approche inclusive et ouverte d'esprit.
B1 adjective /ʌnˈnoʊn/

Unknown

inconnu
Meaning
not known or identified; unfamiliar
Example
The author of this letter remains unknown.
L'auteur de cette lettre reste inconnu.
C1 adjective /ʌnˈmɒdɪfaɪd/

unmodified

non modifié
Meaning
not changed from its original form or state
Example
The data was used in its unmodified form for analysis.
Les données ont été utilisées sous leur forme non modifiée.
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.
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.
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.
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 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.
C1 noun /juːˈtoʊpiə/

utopia

utopie
Meaning
An imagined perfect society or place where everything is ideal.
Example
Many philosophers dreamed of creating a utopia for humanity.
De nombreux philosophes ont rêvé de créer une utopie pour l'humanité.
C1 noun /ˈʌndərˌwɜːrld/

underworld

sous-monde
Meaning
The criminal world of organized crime or the mythical world of the dead.
Example
The detective spent years studying the secrets of the underworld.
Le détective a passé des années à étudier les secrets du sous-monde.
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.
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.
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.
C1 adjective /ʌnˈduː/

Undue

excessif; inapproprié; plus que ce qui est nécessaire ou approprié
Meaning
excessive; inappropriate; more than is necessary or proper
Example
The teacher complained about undue pressure from parents.
Le professeur s'est plaint de la pression excessive des parents.
C1 adjective /ˌʌnəkˈnɒlɪdʒd/

unacknowledged

non reconnu
Meaning
Not recognized, admitted, or accepted; ignored or unnoticed
Example
Her contributions to the project went unacknowledged.
Ses contributions au projet sont restées non reconnues.
B2 adverb juːˈnæn.ɪ.məs.li

unanimously

unanime
Meaning
With the agreement of all people involved; without opposition.
Example
The proposal was unanimously accepted.
La proposition a été acceptée à l'unanimité.
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.
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.
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.
A2 adjective /ʌnˈhæp.i/

Unhappy

mécontent; triste
Meaning
not happy; feeling sad or displeased; unfortunate or undesirable
Example
He was unhappy with the results of his exam.
Il était mécontent des résultats de son examen.
C1 adjective /ˌjuːtɪlɪˈtɛəriən/

utilitarian

utilitaire
Meaning
Designed to be useful or practical rather than attractive; relating to the doctrine that actions are right if they are useful or for the benefit of a majority.
Example
The building had a simple utilitarian design.
Le bâtiment avait une conception utilitaire simple.
B2 noun ˌɜːbənaɪˈzeɪʃən

urbanization

urbanisation
Meaning
The process by which towns and cities are formed and become larger as more people begin living and working in central areas.
Example
Urbanization leads to more developed infrastructure.
L'urbanisation mène à une infrastructure plus développée.
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.
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 /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 /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.
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.
B1 noun /ˌʌnɪmˈplɔɪmənt/

Unemployment

chômage
Meaning
the state of being unemployed; lack of paid work
Example
The unemployment rate has increased significantly this year.
Le taux de chômage a augmenté de manière significative cette année.
B2 noun /ˈʌpˌkiːp/

up-keep

entretien
Meaning
The process or cost of maintaining something in good condition.
Example
The upkeep of the old house is very expensive.
L'entretien de la vieille maison est très cher.
A2 adjective /ʌnˈtaɪdi/

Untidy

désordonné; en désordre;
Meaning
not neat or orderly; messy and disorganized
Example
Her untidy room was filled with clothes scattered everywhere.
Sa chambre en désordre était remplie de vêtements éparpillés partout.
C2 adjective /ˌʌnəˈsweɪdʒd/

unassuaged

inquiet
Meaning
Not made less intense or relieved; unrelieved.
Example
His grief remained unassuaged despite the passage of time.
Sa douleur est restée inquiète malgré le passage du temps.
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.
C2 adjective /ʌnˈblʌʃɪŋ/

Unblushing

effronté; sans vergogne
Meaning
showing no shame or embarrassment; boldly shameless
Example
He told the unblushing lie without any hesitation.
Il a dit le mensonge effronté sans hésitation.
C2 noun /ˈjuːnɪvəˌlɛns/

univalence

univalence
Meaning
The state of having a single valence or combining power, especially in chemistry.
Example
Hydrogen is characterized by its univalence in chemical reactions.
L'hydrogène est caractérisé par son univalence dans les réactions chimiques.
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.
C1 adjective /ʌnˈkuːθ/

uncouth

grossier
Meaning
Lacking good manners, refinement, or grace; awkward or rough.
Example
His uncouth behavior shocked the guests at the party.
Son comportement grossier a choqué les invités à la fête.
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.
C2 adjective /ʌnˈʌtərəbl/

unutterable

inexprimable
Meaning
Too great, intense, or awful to be expressed or described in words.
Example
She was filled with unutterable joy at the news of her success.
Elle était remplie de joie inexprimable en apprenant la nouvelle de son succès.
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 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 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

infidélité
Meaning
the quality of being disloyal or not faithful; breach of trust or fidelity
Example
His unfaithfulness led to the end of their marriage.
Son infidélité a conduit à la fin de leur mariage.
C2 adjective /ʌnˈtɛmpərd/

untempered

non tempéré
Meaning
not moderated or softened; lacking proper balance or control
Example
The untempered anger of the crowd caused chaos.
La colère non tempérée de la foule a provoqué le chaos.
A2 adjective /ˈʌɡ.li/

Ugly

laid; repoussant; horrible
Meaning
unpleasant or repulsive in appearance; morally reprehensible
Example
The old building looked ugly after years of neglect.
Le vieux bâtiment avait l'air laid après des années de négligence.
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.
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.
B1 adjective /ʌnˈkaɪnd/

Unkind

cruel; pas gentil
Meaning
cruel; not nice or caring toward others
Example
It was unkind of him to make fun of her appearance.
C'était cruel de sa part de se moquer de son apparence.
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.
B2 adjective /ˌʌnəˈfɪʃ.əl/

Unofficial

non officiel
Meaning
not officially authorized or confirmed; informal
Example
The unofficial results showed a close race.
Les résultats non officiels ont montré une course serrée.
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 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.
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 adjective /ʌnˈstɪntɪŋ/

unstinting

généreux
Meaning
given generously without holding back
Example
She received unstinting support from her family.
Elle a reçu un soutien généreux de sa famille.
C1 verb /ˌʌndərˈsɛl/

undersell

vendre à un prix inférieur
Meaning
to sell something at a lower price than competitors or to downplay the value of something
Example
The shop undersold its rivals by offering huge discounts.
Le magasin a vendu à ses rivaux à un prix inférieur en offrant de grosses réductions.
B1 adjective /ˌʌnˈpeɪd/

Unpaid

non payé; sans salaire
Meaning
not paid for; without payment or salary
Example
She worked as an unpaid intern for six months.
Elle a travaillé comme stagiaire non payée pendant six mois.
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.
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.
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.
A2 noun /ˈjuːzər/

user

utilisateur
Meaning
a person who uses or operates something
Example
He is a frequent user of this app.
Il est un utilisateur fréquent de cette application.
B1 adjective /ʌnˈkʊkt/

uncooked

cru
Meaning
Not cooked; in a raw state.
Example
Eating uncooked meat can be dangerous.
Manger de la viande crue peut être dangereux.
B2 adjective /ʌnˈendɪŋ/

Unending

sans fin
Meaning
continuing forever; without end
Example
The unending rain made the day feel gloomy.
La pluie sans fin a rendu la journée morose.
C1 noun /ˈʌlsər/

ulcer

ulcère
Meaning
a sore on the skin or a mucous membrane that does not heal easily
Example
The doctor prescribed medicine to treat the stomach ulcer.
Le médecin a prescrit des médicaments pour traiter l'ulcère de l'estomac.
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.
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.
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.
C1 adjective /ʌnˈtaɪərɪŋ/

Untiring

inlassable; persévérant; infatigable
Meaning
continuing without stopping; persistent; tireless
Example
Her untiring efforts finally led to success.
Ses efforts inlassables ont finalement conduit au succès.
B1 adjective /ʌnˈmærid/

unmarried

célibataire
Meaning
Not married; single.
Example
He is thirty-five and still unmarried.
Il a trente-cinq ans et il est toujours célibataire.
C2 adjective /ʌnˈtʃeɪst/

Unchaste

immoral; impur;
Meaning
not celibate; having engaged in sexual relations; lacking moral purity
Example
The conservative society considered her behavior unchaste and improper.
La société conservatrice a jugé son comportement immoral et inapproprié.
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 /ʌnprəˈfɛʃ.ən.əl/

Unprofessional

non professionnel
Meaning
not conforming to the standards expected in a particular profession
Example
His unprofessional behavior led to his dismissal from the company.
Son comportement non professionnel a conduit à son licenciement de l'entreprise.
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 /ʌnˈɪndʒərd/

uninjured

intacte
Meaning
Without injury; not physically harmed.
Example
All the passengers were rescued uninjured.
Tous les passagers ont été sauvés indemnes.
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 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.
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 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.
B2 verb /ʌnˈtaɪ/

untie

délier
Meaning
to loosen or remove a knot or binding; to release something that is tied
Example
She untied the rope to free the boat.
Elle a délié la corde pour libérer le bateau.
C2 verb /juˈzɜrp/

usurp

usurper
Meaning
to take someone's position of power illegally or by force
Example
The general tried to usurp the king's throne.
Le général a tenté de usurper le trône du roi.
B1 adjective /ʌnˈnesəseri/

Unnecessary

inutile; superflu
Meaning
not needed; not required; pointless
Example
The meeting was unnecessary since all decisions were already made.
La réunion était inutile puisque toutes les décisions avaient déjà été prises.