untrammeled
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C2 adjective /ʌnˈtræməld/

untrammeled

libertad ilimitada
Meaning
Not restricted or hampered; free and unrestricted.
Example
She enjoyed untrammeled freedom in her new life abroad.
Disfrutó de libertad ilimitada en su nueva vida en el extranjero.
B1 adjective /ʌnˈsɜːrtən/

Uncertain

incierto
Meaning
not able to be relied on; not known or definite; not having reliable knowledge
Example
I am uncertain about my future career plans.
Estoy incierto sobre mis planes futuros de carrera.
C1 adjective /ʌnˈsəʊʃəbl/

unsociable

poco sociable
Meaning
not enjoying the company of others; avoiding social interaction
Example
He became unsociable after moving to a new city.
Se volvió poco sociable después de mudarse a una nueva ciudad.
B1 adjective /ʌnˈkaɪnd/

Unkind

cruel; no amable
Meaning
cruel; not nice or caring toward others
Example
It was unkind of him to make fun of her appearance.
Fue cruel de su parte hacer burla de su apariencia.
C2 adjective /ˌʌltrəˈmɒnteɪn/

ultramontane

partidario del Papa
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.
El debate destacó la posición ultramontana en la política eclesiástica.
C1 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

infidelidad
Meaning
the quality of being disloyal or not faithful; breach of trust or fidelity
Example
His unfaithfulness led to the end of their marriage.
Su infidelidad llevó al fin de su matrimonio.
C1 adjective /ʌnˈmaɪndfəl/

Unmindful

despreocupado; descuidado;
Meaning
not paying attention; careless; heedless
Example
She was unmindful of the danger around her.
Ella no prestaba atención al peligro a su alrededor.
B2 adjective /ˌʌndɪˈveləpt/

Undeveloped

no desarrollado; inmaduro; primitivo
Meaning
not yet developed; immature or primitive
Example
The undeveloped land was later turned into a park.
La tierra no desarrollada fue luego convertida en un parque.
C2 verb /ʌpˈbreɪd/

upbraid

reprender
Meaning
To scold or criticize someone harshly.
Example
The teacher upbraided the student for being late again.
El maestro reprendió al estudiante por llegar tarde otra vez.
C2 verb /ˈʌndjʊleɪt/

undulate

ondular
Meaning
To move with a smooth, wave-like motion.
Example
The snake undulated across the sand.
La serpiente onduló a través de la arena.
C1 adjective /ʌnˈʃeɪkən/

Unshaken

inquebrantable; firme
Meaning
not disturbed or affected; firm and steady; unwavering
Example
Her faith remained unshaken despite all the challenges.
Su fe permaneció inquebrantable a pesar de todos los desafíos.
A1 verb /juːz/

use

utilizar
Meaning
to employ something for a purpose; to take advantage of
Example
I use my computer for work and entertainment.
Yo uso mi computadora para trabajar y entretenerme.
C1 noun /ˌjuːnɪˈfɔːrməti/

Uniformity

uniformidad; consistencia; igualdad
Meaning
the quality of being uniform; consistency or sameness
Example
The uniformity of the design created a pleasing visual effect.
La uniformidad del diseño creó un efecto visual atractivo.
C2 noun /ˈjuːʒəri/

usury

usura
Meaning
The practice of lending money at unreasonably high interest rates.
Example
The law strictly prohibits usury.
La ley prohíbe estrictamente la usura.
B2 adjective /ʌnˈɡreɪt.fəl/

Ungrateful

ingrato
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.
Ella sintió que él era ingrato por toda la ayuda que le había dado.
C2 adjective /ʌnˈkɒnʃənəbl/

unconscionable

injustificable
Meaning
shockingly unfair or unreasonable
Example
The company made unconscionable profits from the crisis.
La empresa hizo ganancias injustificables durante la crisis.
B2 adjective /ʌnˈdʒʌst/

Unjust

injusto; incorrecto
Meaning
not fair or right; morally wrong
Example
The punishment was unjust for such a minor offense.
El castigo fue injusto por tal pequeña ofensa.
B2 adjective /ʌnˈwɪl.ɪŋ/

Unwilling

reacio; reticente;
Meaning
not ready to do something; reluctant; not wanting to do
Example
He was unwilling to share his secret with anyone.
Él no quería compartir su secreto con nadie.
A1 preposition /ˈʌndər/

under

debajo
Meaning
in or to a lower position than something
Example
The cat is under the table.
El gato está debajo de la mesa.
B2 adjective /ʌnˈkɒmən/

uncommon

poco común
Meaning
rare, unusual, or remarkable
Example
It is uncommon to see snow in this region.
Es raro ver nieve en esta región.
C1 adjective /ʌnˈsaɪtli/

unsightly

desagradable
Meaning
Unpleasant to look at; ugly.
Example
The garbage pile created an unsightly view in the park.
El montón de basura creó una vista desagradable en el parque.
C1 verb /ˌʌndərˈvæljuː/

undervalue

devaluar
Meaning
To assign too low a value or importance to something or someone.
Example
She felt that her boss consistently undervalued her contributions.
Ella sintió que su jefe constantemente no valoraba sus contribuciones.
B1 adjective ʌnˈplænd

unplanned

no planificado
Meaning
Not planned or arranged in advance; happening spontaneously without preparation.
Example
Unplanned urbanization contributes to environmental issues.
La urbanización no planificada contribuye a problemas ambientales.
C2 noun /ɜːrˈbænɪti/

urbanity

urbanidad
Meaning
refined courtesy, elegance, and sophistication in manner
Example
Her urbanity made her popular among diplomats and leaders.
Su urbanidad la hizo popular entre diplomáticos y líderes.
B2 verb ˈjuːnɪfaɪ

unify

unificar
Meaning
To make or become united, uniform, or whole; to bring together into a single unit.
Example
Adolescents unify with peers for social acceptance.
Los adolescentes se unifican con sus compañeros para la aceptación social.
B2 verb /ˌʌndərˈskɔːr/

underscore

subrayar
Meaning
to emphasize or highlight something
Example
The incident underscored the need for better safety measures.
El incidente subrayó la necesidad de mejores medidas de seguridad.
A2 adjective /ʌnˈhel.θi/

Unhealthy

insalubre; no saludable
Meaning
harmful to health; not in good health; detrimental to well-being
Example
Eating too much fast food is unhealthy for your body.
Comer demasiada comida rápida es insalubre para tu cuerpo.
B2 noun /ʌnˈkɒnʃəsnəs/

unconsciousness

inconsciencia
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.
Después del accidente, él estuvo en estado de inconsciencia durante varias horas.
C2 adjective ˌʌn.əˈseɪ.lə.bəl

unassailable

inexpugnable
Meaning
Unable to be attacked, questioned, or defeated.
Example
An unassailable position ensures dominance.
Una posición inexpugnable asegura la dominancia.
B2 adjective /ˌʌnkənˈtroʊld/

uncontrolled

incontrolado
Meaning
not restrained or managed; lacking control
Example
The wildfire spread in an uncontrolled manner, causing widespread damage.
El incendio forestal se extendió de manera incontrolada, causando daños generalizados.
B2 adjective /ʌnˈstɛdi/

unsteady

inestable
Meaning
not firm or stable; likely to change or fail
Example
She felt unsteady on her feet after the long journey.
Se sentía inestable después del largo viaje.
C2 adjective /ʌnəˈpiːzd/

unappeased

insatisfecho
Meaning
Not satisfied or calmed; still feeling discontent or anger
Example
Despite the apology, she remained unappeased.
A pesar de la disculpa, ella permaneció insatisfecha.
C1 adjective /ˌʌnɪmˈplɔɪəbəl/

unemployable

desempleable
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.
Debido a su historial criminal, fue considerado desempleable en la mayoría de las empresas.
C1 verb /ʌnˈnɜːrv/

unnerve

perder la confianza
Meaning
to make someone lose confidence, courage, or composure
Example
The hostile questions began to unnerve the witness.
Las preguntas hostiles comenzaron a poner nervioso al testigo.
C1 verb /ˌʌndərˈsɛl/

undersell

vender a un precio más bajo
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.
La tienda vendió a sus rivales a un precio más bajo ofreciendo grandes descuentos.
B2 adjective /ʌnˌkənˈfɜːmd/

Unconfirmed

no confirmado; no verificado;
Meaning
not confirmed as true or definite; not verified or substantiated
Example
The report remains unconfirmed until we receive official verification.
El informe sigue sin confirmar hasta que recibamos la verificación oficial.
C1 adjective /ˌʌnrɪˈkwaɪtɪd/

unrequited

no correspondido
Meaning
Not returned or reciprocated, especially in the context of love or affection.
Example
He suffered from unrequited love for years.
Él sufrió de amor no correspondido durante años.
C1 verb /ˌʌndəˈreɪt/

underrate

subestimar
Meaning
to fail to recognize the full value or importance of something or someone
Example
Many people underrate the benefits of regular exercise.
Muchas personas subestiman los beneficios del ejercicio regular.
C1 verb /ˌʌndərˈsteɪt/

understate

minimizar
Meaning
To describe something as being less important or serious than it really is.
Example
He tends to understate his achievements.
Él tiende a restar importancia a sus logros.
C1 noun ˈʌp.raɪ.zɪŋ

uprising

levantamiento
Meaning
An act of resistance or rebellion; a revolt against an authority or government.
Example
The uprising marked the beginning of the revolution.
El levantamiento marcó el comienzo de la revolución.
C1 adjective /ʌnˈfɛtərd/

unfettered

libre
Meaning
not restricted or confined; free
Example
The artist enjoyed unfettered freedom of expression.
El artista disfrutó de la libertad ilimitada de expresión.
B2 verb /ʌnˈtaɪ/

untie

desatar
Meaning
to loosen or remove a knot or binding; to release something that is tied
Example
She untied the rope to free the boat.
Ella desató la cuerda para liberar el bote.
B2 adjective /ʌnˈiːzi/

Uneasy

inquieto; ansioso; incómodo
Meaning
worried; anxious; uncomfortable; restless
Example
She felt uneasy about walking alone at night.
Ella se sentía inquieta al caminar sola de noche.
C1 adjective /ˌʌnrɪˈfaɪnd/

unrefined

sin refinar
Meaning
not processed or purified; lacking polish or sophistication
Example
The unrefined oil must be processed before it can be used as fuel.
El aceite sin refinar debe procesarse antes de usarse como combustible.
C2 adjective /ˈɜːrsaɪn/

ursine

osoide
Meaning
Relating to or resembling a bear.
Example
The man’s ursine strength amazed everyone.
La fuerza osoide del hombre sorprendió a todos.
C2 adjective /ʌnˈflɛdʒd/

unfledged

inexperto
Meaning
Inexperienced, immature, or not fully developed.
Example
The unfledged writer struggled to complete his first novel.
El escritor inexperto luchó por completar su primera novela.
B2 adjective /ˌʌnrɪˈlaɪəbl/

Unreliable

no confiable; no se puede confiar ni depender de él
Meaning
not dependable; not able to be trusted or relied upon
Example
The old car is unreliable and breaks down frequently.
El coche viejo no es confiable y se descompone con frecuencia.
B2 verb /ˌʌndərˈɛstɪmeɪt/

underestimate

subestimar
Meaning
To judge something as less important or smaller than it really is.
Example
Never underestimate the power of teamwork.
Nunca subestimes el poder del trabajo en equipo.
C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

sencillo, sin adornos
Meaning
Plain and simple; not decorated.
Example
The room was unadorned, with only a table and a chair.
La habitación estaba sencilla, con solo una mesa y una silla.
B2 verb /ʌpˈhoʊld/

uphold

mantener
Meaning
to maintain or support a principle, law, or decision
Example
The judge promised to uphold justice at all costs.
El juez prometió mantener la justicia a toda costa.
C2 adjective /ʌnˈʌtərəbl/

unutterable

inefable
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.
Ella estaba llena de una alegría inefable al escuchar las noticias de su éxito.
C1 verb /ʌpˈruːt/

uproot

desarraigar
Meaning
To pull something out of the ground; to remove or displace completely.
Example
They uprooted the old tree from the garden.
Ellos desenterraron el viejo árbol del jardín.
C2 verb /ʌpˈhiːv/

upheave

levantar
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.
Los trabajadores tuvieron que levantar la piedra pesada para despejar el camino.
B2 adjective /ˌʌnɪˈmædʒənəbəl/

Unimaginable

inimaginable
Meaning
impossible to conceive; beyond imagination
Example
The scale of destruction was unimaginable until we saw it firsthand.
La escala de la destrucción era inimaginable hasta que lo vimos de primera mano.
B1 adjective /ʌnˈʃʊr/

unsure

inseguro
Meaning
not certain or confident; feeling doubt
Example
She felt unsure about the decision.
Ella se sentía insegura sobre la decisión.
C2 adjective /ˌʌnɪkˈsɛpʃənəbl/

unexceptionable

irreprochable
Meaning
Not open to objection; acceptable and unobjectionable
Example
His behavior was unexceptionable throughout the event.
Su comportamiento fue irreprochable durante el evento.
C1 noun ˌʌndərˈprɪvəlɪdʒd ɡruːps

underprivileged groups

grupos desfavorecidos
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.
Los grupos desfavorecidos se benefician de las iniciativas sociales.
B2 noun /juːˈtɪl.ə.ti/

Utility

utilidad; beneficio; servicio público
Meaning
the state of being useful, profitable, or beneficial; a public service
Example
The utility of solar panels increases with rising electricity costs.
La utilidad de los paneles solares aumenta con el aumento de los costos de electricidad.
B2 adjective /ʌnˌkənˈdɪʃ.ən.əl/

Unconditional

incondicional
Meaning
not subject to any conditions; complete and absolute
Example
She offered her unconditional support to her friend in need.
Ella ofreció su apoyo incondicional a su amigo en necesidad.
C1 verb /ˌʌndərˈlaɪ/

underlie

subyacer
Meaning
to be the hidden cause or basis of something
Example
Strong cultural traditions underlie the community's practices.
Las fuertes tradiciones culturales subyacen a las prácticas de la comunidad.
C2 adjective /ʌnˈɡeɪnli/

ungainly

torpe
Meaning
Awkward, clumsy, or lacking grace in movement or appearance.
Example
The tall boy moved in an ungainly manner.
El chico alto se movió de manera torpe.
B1 adjective /ʌnˈwel/

Unwell

enfermo; indispuesto
Meaning
not in good health; feeling sick or ill
Example
She has been feeling unwell since yesterday.
Ella ha estado sintiéndose mal desde ayer.
C1 adjective /ʌnˈfɔːltərɪŋ/

unfaltering

inquebrantable
Meaning
Steady and resolute; not weakening or hesitating
Example
She continued with unfaltering determination.
Ella continuó con una determinación inquebrantable.
C1 adjective /ˈʌndərhænd/

underhand

engañoso
Meaning
done secretly and dishonestly; deceitful
Example
The politician was accused of using underhand tactics to win the election.
El político fue acusado de usar tácticas engañosas para ganar las elecciones.
C2 verb /ˌʌn.dɪˈsiːv/

undeceive

desengañar
Meaning
To free someone from a misconception or false belief.
Example
She tried to undeceive him about the false rumors.
Ella trató de desengañarlo sobre los rumores falsos.
C1 adjective /ˌʌnɪˈkwɪvəkəl/

unequivocal

inequívoco
Meaning
Leaving no doubt; clear and unambiguous
Example
She gave an unequivocal answer to the question.
Ella dio una respuesta inequívoca a la pregunta.
C1 adjective ʌnˈjiːl.dɪŋ

unyielding

inquebrantable o firme
Meaning
Not easily broken or giving in to pressure.
Example
Her unyielding determination helped her overcome all challenges.
Su determinación inquebrantable la ayudó a superar todos los desafíos.
C2 adjective /ˈʌŋk.tʃu.əs/

unctuous

lisonjero
Meaning
Excessively flattering or ingratiating; oily in texture.
Example
His unctuous tone made everyone uncomfortable.
Su tono lisonjero hizo que todos se sintieran incómodos.
C2 noun /ˈjuːnɪvəˌlɛns/

univalence

univalencia
Meaning
The state of having a single valence or combining power, especially in chemistry.
Example
Hydrogen is characterized by its univalence in chemical reactions.
El hidrógeno se caracteriza por su univalencia en las reacciones químicas.
A2 adjective /ʌnˈlʌki/

Unlucky

desafortunado; de mala suerte
Meaning
having bad luck; unfortunate
Example
He was unlucky to miss the winning shot.
Él tuvo mala suerte al perder el tiro ganador.
B1 adjective /ˈʌpər/

upper

superior
Meaning
higher in position or rank
Example
The upper floor of the building is under renovation.
El piso superior del edificio está en renovación.
B2 adjective /ˈjuː.nɪ.faɪd/

unified

unificado
Meaning
Made into a whole or joined together.
Example
A unified approach fosters better outcomes.
Un enfoque unificado fomenta mejores resultados.
C1 adjective /ʌnˈɒnəd/

unhonoured

deshonrado
Meaning
not respected or given the recognition that is deserved; treated without honor
Example
He felt unhonoured after his years of service were ignored.
Se sintió deshonrado después de que ignoraran sus años de servicio.
B2 adjective /ʌnˈdɪvaɪdɪd/

Undivided

Indiviso; completo; no separado ni dividido
Meaning
whole; complete; not separated or split
Example
The team showed undivided attention to the coach's instructions.
El equipo mostró atención indivisa a las instrucciones del entrenador.
C2 verb /ʌnˈjoʊk/

unyoke

desenganchar
Meaning
To release from a yoke or to free from restraint or obligation.
Example
The farmer unyoked the oxen after a long day of work.
El agricultor desenganchó los bueyes después de un largo día de trabajo.
C2 noun /ˈʌndərlɪŋ/

underling

subordinado
Meaning
a person of low rank or importance; a subordinate
Example
The manager ordered his underlings to finish the task quickly.
El gerente ordenó a sus subordinados terminar la tarea rápidamente.
C2 noun /ˈʌŋkʃən/

unction

unción
Meaning
The act of anointing as part of a religious or ceremonial ritual; excessive or insincere flattery.
Example
The priest performed the holy unction with solemnity.
El sacerdote realizó la santa unción con solemnidad.
B2 adjective /ʌnˈraɪp/

Unripe

inmaduro
Meaning
not fully developed or matured; not ready to be eaten
Example
The unripe bananas will turn yellow in a few days.
Las bananas no maduras se pondrán amarillas en unos días.
C1 noun /ˈʌndərˌɡɑːrmənt/

undergarment

ropa interior
Meaning
a piece of clothing worn under outer clothes, usually next to the skin
Example
He bought new undergarments for the wedding.
Compró ropa interior nueva para la boda.
C1 adjective /ˌʌnəˈfɛktɪd/

unaffected

inafectado, genuino
Meaning
Not influenced or touched by something; genuine and natural.
Example
He remained unaffected by the criticism and kept working hard.
Él permaneció sin verse afectado por la crítica y siguió trabajando duro.
C2 adjective /ˌʌltrəˈmʌndeɪn/

ultramundane

ultramundano
Meaning
Relating to things beyond the physical world; supernatural or transcendental.
Example
Philosophers often discuss ultramundane realities beyond human perception.
Los filósofos a menudo discuten las realidades ultramundanas más allá de la percepción humana.
B1 adverb /ʌnˈfɔːrtʃənətli/

Unfortunately

desafortunadamente
Meaning
used to express regret or disappointment about something
Example
Unfortunately, the weather was bad for our picnic.
Desafortunadamente, el tiempo estuvo mal para nuestro picnic.
B1 adjective /ʌnˈnesəseri/

Unnecessary

innecesario; innecesario
Meaning
not needed; not required; pointless
Example
The meeting was unnecessary since all decisions were already made.
La reunión fue innecesaria ya que todas las decisiones ya se habían tomado.
C2 adjective /ˈʌndjʊleɪtɪŋ/

undulating

ondulante
Meaning
Having a smoothly rising and falling form or motion like waves.
Example
We drove through undulating hills.
Condujimos por colinas onduladas.
C2 adjective /ʌnˈtʃeɪst/

Unchaste

inmoral; impuro;
Meaning
not celibate; having engaged in sexual relations; lacking moral purity
Example
The conservative society considered her behavior unchaste and improper.
La sociedad conservadora consideró su comportamiento inmoral e inapropiado.
B2 adjective /ʌnprɪˈpɛrd/

Unprepared

despreparado
Meaning
not ready or able to deal with something
Example
He was unprepared for the difficult exam.
Él estaba desprevenido para el examen difícil.
A2 noun /ˈʌndərweər/

underwear

ropa interior
Meaning
Clothing worn beneath outer clothes, typically next to the skin.
Example
He bought new underwear for the trip.
Compró ropa interior nueva para el viaje.
B1 adjective /ˌʌnbɪˈliːvəbəl/

Unbelievable

increíble
Meaning
impossible to believe; extremely surprising or remarkable
Example
The magician's performance was absolutely unbelievable.
La actuación del mago fue absolutamente increíble.
B2 adjective /ʌnˈfeɪv(ə)rəbəl/

unfavorable

desfavorable
Meaning
not beneficial or advantageous; showing disapproval or opposition
Example
The proposal received an unfavorable response from the committee.
La propuesta recibió una respuesta desfavorable del comité.
C2 adjective /ʌnˈspɛərɪŋ/

unsparing

implacable
Meaning
Showing no mercy or generosity; harsh or severe.
Example
The critic was unsparing in his review of the play.
El crítico fue implacable en su reseña de la obra.
C1 adjective /ˌʌnbɪˈkʌmɪŋ/

unbecoming

inadecuado
Meaning
Not proper or appropriate for a person; unsuitable.
Example
His rude behavior was unbecoming of a leader.
Su comportamiento grosero era inadecuado para un líder.
C1 noun /ˈʌp.rɔːr/

Uproar

alboroto; ruido; disturbio
Meaning
a loud and emotional noise or disturbance; public outcry
Example
The announcement caused an uproar among the students.
El anuncio causó un alboroto entre los estudiantes.
C1 verb /ʌnˈmɑːsk/

unmask

desenmascarar
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.
La investigación ayudó a desenmascarar al verdadero culpable del crimen.
B1 adjective /ʌnˈklɪər/

unclear

poco claro
Meaning
not easy to understand; vague or ambiguous
Example
The instructions were unclear, so I asked for clarification.
Las instrucciones eran poco claras, así que pedí aclaraciones.
A1 adjective /ˈjuːs.fəl/

Useful

útil; práctico
Meaning
having a beneficial purpose; practical
Example
This tool is very useful for fixing problems.
Esta herramienta es muy útil para resolver problemas.
B1 adjective /ʌnˈfrɛndli/

unfriendly

antipático
Meaning
not kind or welcoming; hostile or cold in behavior or attitude
Example
The shop owner seemed unfriendly to new customers.
El dueño de la tienda parecía antipático con los nuevos clientes.
C1 adjective /ʌnˈkwaɪ.ət/

Unquiet

inquieto; ansioso; perturbado
Meaning
restless; unable to remain still or quiet; anxious or troubled
Example
She spent an unquiet night worrying about the exam results.
Pasó una noche inquieta preocupada por los resultados del examen.
B1 adjective /ˌʌnˈpeɪd/

Unpaid

no remunerado; sin pago
Meaning
not paid for; without payment or salary
Example
She worked as an unpaid intern for six months.
Trabajó como una pasante no remunerada durante seis meses.
A2 adjective /ˈʌɡ.li/

Ugly

feo; repulsivo; desagradable
Meaning
unpleasant or repulsive in appearance; morally reprehensible
Example
The old building looked ugly after years of neglect.
El edificio viejo se veía feo después de años de descuido.
C1 adjective /ˌʌndərˈsaɪzd/

undersized

de tamaño pequeño
Meaning
Smaller than the usual or expected size.
Example
The undersized puppy struggled to keep up with its siblings.
El perrito de tamaño pequeño luchaba por mantenerse al día con sus hermanos.
B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

increíble
Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
Su excusa por llegar tarde era completamente increíble.
B2 adjective /ʌnˈskɪld/

Unskilled

no cualificado; trabajador sin habilidades
Meaning
lacking technical training or ability; not requiring special skills
Example
Many unskilled workers are looking for training opportunities.
Muchos trabajadores no cualificados están buscando oportunidades de formación.
B1 adjective /ʌnˈeɪ.bəl/

Unable

incapaz
Meaning
lacking the power, skill, or means to do something
Example
He was unable to attend the meeting.
Él no pudo asistir a la reunión.
B1 adjective /ˌʌnˈɪntrəstɪŋ/

uninteresting

aburrido
Meaning
not holding attention or curiosity; boring
Example
The lecture was uninteresting and difficult to stay focused on.
La conferencia fue aburrida y difícil de seguir.
C2 verb /ʌnˈɑːrm/

unarm

desarmar
Meaning
to remove weapons from someone or to deprive of means of attack or defense
Example
The soldiers were ordered to unarm the prisoners.
Se ordenó a los soldados desarmar a los prisioneros.
B2 adverb /ˈʌltəmətli/

ultimately

finalmente
Meaning
in the end, after everything else
Example
Ultimately, we decided to go ahead with the project.
Finalmente, decidimos continuar con el proyecto.
C1 adjective /ʌnˈkʌltʃəd/

Uncultured

incivilizado; sin educación
Meaning
lacking good manners, refinement, or education; uncivilized
Example
His uncultured behavior embarrassed everyone at the dinner party.
Su comportamiento incivilizado avergonzó a todos en la fiesta de la cena.
C1 noun /juːˈtoʊpiə/

utopia

utopía
Meaning
An imagined perfect society or place where everything is ideal.
Example
Many philosophers dreamed of creating a utopia for humanity.
Muchos filósofos soñaron con crear una utopía para la humanidad.
C1 adjective /ʌnˈsɜːrvɪsəbəl/

Unserviceable

inservible; defectuoso
Meaning
not in working order; unable to be used; defective
Example
The old computer became unserviceable after the system crash.
La computadora vieja se volvió inservible después del fallo del sistema.
B2 adjective /ʌnˈsuːtəbl/

Unsuitable

inapropiado; inapto
Meaning
not fitting or appropriate for a particular purpose or situation
Example
This formal dress is unsuitable for a casual beach party.
Este vestido formal es inapropiado para una fiesta de playa casual.
C2 adjective /ʌnˈtɛmpərd/

untempered

intempérate
Meaning
not moderated or softened; lacking proper balance or control
Example
The untempered anger of the crowd caused chaos.
La ira intempérate de la multitud causó caos.
A1 adjective /juːzd/

used

usado
Meaning
having already been used
Example
This is a used car.
Este es un coche usado.
A1 pronoun /ʌs/

us

nosotros
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.
Ella nos dio un regalo.
B2 adjective ʌnˈprɛsɪˌdɛntɪd

unprecedented

sin precedentes
Meaning
Never done or known before; without previous example.
Example
Unprecedented advancements in science changed human lives.
Los avances sin precedentes en la ciencia cambiaron la vida humana.
A2 adjective /ʌnˈhæp.i/

Unhappy

descontento; triste
Meaning
not happy; feeling sad or displeased; unfortunate or undesirable
Example
He was unhappy with the results of his exam.
Él estaba descontento con los resultados de su examen.
C2 adjective /ʌnˈmɪtɪɡeɪtɪd/

unmitigated

completo
Meaning
absolute; not lessened or moderated
Example
The meeting was an unmitigated disaster.
La reunión fue un desastre completo.
C1 adjective /ʌnˈtʃælɪndʒd/

Unchallenged

incontestable; aceptado sin oposición; sin rival
Meaning
not disputed or questioned; accepted without opposition; having no rival
Example
He remained the unchallenged champion for five years.
Él permaneció como el campeón indiscutido durante cinco años.
C1 adjective /ˌjuːnɪˈlætərəl/

Unilateral

unilateral
Meaning
one-sided; involving only one party
Example
The country made a unilateral decision to withdraw from the treaty.
El país tomó una decisión unilateral de retirarse del tratado.
B2 adjective /ʌnˈiːvən/

Uneven

irregular; áspero
Meaning
not level or smooth; not regular or consistent
Example
The road was uneven and full of potholes.
La carretera estaba irregular y llena de baches.
C1 noun /ˈʌndərˌstʌdi/

understudy

doble de reparto
Meaning
An actor who learns another's role to act as a replacement if needed.
Example
The understudy performed when the lead actor fell ill.
El doble de reparto actuó cuando el actor principal se enfermó.
C1 adjective /ˈʌpərˌmoʊst/

uppermost

más alto
Meaning
situated at the highest place or most important
Example
Her family's safety was uppermost in her mind during the crisis.
La seguridad de su familia era lo más importante en su mente durante la crisis.