68 Adjectives Starting with U Commonly Used in Formal Letters and Everyday Conversation

Adjectives are used to describe nouns and pronouns, helping to make descriptions more clear. For example, they create clear ideas of what the noun or pronoun tastes, smells, feels, looks, and sounds like.

In this article, I will share with you 68 descriptive words starting with U that are used in our day to day communication. You will be able to read the definitions, synonyms and examples of each of these adjectives, which will enable you to use them in many different ways, thus grooming your vocabulary.

Positive Adjectives Starting with U to Describe a Person

1. Unerring

Definition: always right or accurate

Synonyms: perfect, faultless, true, sure

Example: She has an unerring instinct for language.

2. Ulterior

Definition: existing beyond what is obvious or admitted; intentionally hidden

Synonyms: unexpressed, undisclosed, unapparent, secret

Example: She definitely had an ulterior motive in offering to help.

3. Upbeat

Definition: cheerful, optimistic

Synonyms: positive, bright, idealistic, confident

Example: He was upbeat about the company’s future.

4. Understanding

Definition: sympathetically aware of other people’s feelings; tolerant and forgiving

Synonyms: compassionate, kind-hearted, humane, thoughtful

Example: She is an understanding mother.

5. Unimpeachable

Definition: not able to be doubted, questioned, or criticized; entirely trustworthy

Synonyms: dependable, reliable, perfect, faultless

Example: He was pious, charitable, of unimpeachable morality, quick-tempered but placable, no great scholar, and only energetic as a hunter.

6. Urbane

Definition: (of a person) courteous and refined in manner

Synonyms: elegant, polished, courteous

Example: He was charming and urbane, full of witty conversation.

7. Upright

Definition: (of a person) sitting, or standing with the back straight

Synonyms: honorable, honest, respectable, respectable

Example: He is an upright member of society.

Positive Adjectives Starting with U to Describe an Event

1. Unbroken

Definition: not broken, fractured, or damaged

Synonyms: unimpaired, unspoiled, entire, complete

Example: The Olympic record he set is still unbroken.

2. Undeniable

Definition: unable to be denied, or disputed

Synonyms: indisputable, irrefutable, positive, obvious

Example: The defeat of the allies was undeniable, and a violent quarrel broke out between them on the spot.

3. Undisturbed

Definition: not disturbed

Synonyms: calm, unmoved, placid, peaceful

Example: The war had not left Bargate undisturbed.

4. Unforgettable

Definition: impossible to forget; very memorable

Synonyms: indelible, memorable, remarkable

Example: A great way to make the party unforgettable is to have a theme for the night.

Positive Adjectives Starting with U to Describe a Place

1. Ubiquitous

Definition: present, appearing, or found everywhere

Synonyms: everywhere, global, worldwide, pervasive

Example: He aims to make his product ubiquitous by selling it internationally.

2. Uplifted

Definition: raised to a higher moral, social, or cultural level or condition; elevated

Synonyms: boosted, raised, elevated, lifted

Example: Everyone left the meeting feeling uplifted.

3. Umbrageous

Definition: affording shade, inclined to take offense easily

Synonyms: dusky, cloudy, covered, leafy

Example: A garden with umbrageous trees, is here for you to take your ease.

4. Urban

Definition: related to a city

Synonyms: town, city, inner-city, built-up

Example: The town is governed by an urban district council.

5. Undulating

Definition: having a smoothly rising and falling form, or outline

Synonyms: wave, billow, ripple, rise, and fall

Example: The city is laid out regularly on the high, undulating prairie.

6. Uncluttered

Definition: not having or impeded by too many objects, details, or elements

Synonyms: clean, open, orderly, prim

Example: The rooms were plain and uncluttered.

Positive Adjectives Starting with U to Describe Emotions, Personality, and Feelings

1. Ultimate

Definition: being or happening at the end of a process; final

Synonyms: eventual, concluding, endmost, ensuing

Example: His ultimate aim is to increase production.

2. Unique

Definition: being the only one of its kind; unlike anything else

Synonyms: distinctive, individual, unusual, peculiar

Example: Everyone’s fingerprints are unique.

3. United

Definition: joined together for a common purpose, or by common feelings

Synonyms: unified, merged, consolidated, shared

Example: Most of the villagers are united in their feelings that the increased taxes are unfair.

4. Utmost

Definition: most extreme; greatest

Synonyms: highest, maximum, supreme, enormous

Example: We had to push ourselves to the utmost to finish the job in time.

5. Unhurried

Definition: moving, acting, or taking place without haste, or urgency

Synonyms: relaxed, easy-going, careful, calm

Example: He began opening the drawers of his desk in an unhurried way.

6. Undying

Definition: (especially of an emotion) lasting forever

Synonyms: enduring, continuing, constant, permanent

Example: He had won her undying gratitude.

7. Unyielding

Definition: (of a person or their behavior) unlikely to be swayed; resolute

Synonyms: unbending, implacable, obstinate, firm

Example: He was a steely fellow, a man with a gentle southern accent, and an unyielding faith in the discipline.

8. Unselfish

Definition: willing to put the needs, or wishes of others before one’s own

Synonyms: kind, benevolent, charitable, caring

Example: She started to get a reputation as an unselfish girl with a heart of gold.

9. Unfeigned

Definition: genuine; sincere

Synonyms: real, true, honest, authentic, unaffected

Example: He showed unfeigned satisfaction at his friend’s success.

10. Unsullied

Definition: not spoiled, or made impure

Synonyms: spotless, undamaged, unbroken, perfect

Example: His academic reputation remains unsullied by deeds that would have seen him fired in any other establishment.

Negative Adjectives Starting with U to Describe a Person

1. Ugly

Definition: unpleasant or repulsive, especially in appearance

Synonyms: unattractive, unlovely, displeasing, unsightly

Example: He was short, near-sighted, ugly, and exceptionally awkward.

2. Unctuous

Definition: excessively flattering, or ingratiating; oily

Synonyms: fawning, crawling, groveling

Example: He seemed anxious to please but not in an unctuous way.

3. Uppity

Definition: self-important, arrogant

Synonyms: high-hat, snobby, arrogant.

Example: Uppity little man seemed to object to my bringing Bessie along with me.

4. Unfair

Definition: not based on or behaving according to the principles of equality and justice

Synonyms: unjust, prejudiced, inequitable, unequal

Example: She is being a little unfair to her sister.

5. Unfaithful

Definition: disloyal, not faithful, or insincere

Synonyms: faithless, untrue, fickle, cheating

Example: He was wrong for being unfaithful to his wife.

6. Ungracious

Definition: not polite or friendly

Synonyms: rude, impolite, discourteous, impudent

Example: There’s no need to be ungracious about it.

7. Unhappy

Definition: not happy

Synonyms: sad, sorrowful, regretful

Example: He was unhappy about something.

8. Unabashed

Definition: not embarrassed, disconcerted, or ashamed

Synonyms: shameless, bold, fearless

Example: He seems unabashed by his recent defeat.

9. Untalented

Definition: (of a person) not having a natural aptitude, or skill

Synonyms: bulky, inept, incompetent, ungainly

Example: I am one of the most untalented people.

10. Unbearable

Definition: not able to be endured, or tolerated

Synonyms: intolerable, unmanageable

Example: He’s been unbearable since he won that prize.

11. Underrated

Definition: rated, or valued too low

Synonyms: undervalue, underestimate

Example: The man himself clearly feels that he was underrated as a player, especially by the media, and in particular by the press.

12. Unusual

Definition: not habitually, or commonly occurring, or done

Synonyms: uncommon, abnormal, unfamiliar, unexpected

Example: It is unusual for him to come punctually.

13. Unkind

Definition: inconsiderate and harsh to others

Synonyms: uncharitable, spiteful, malicious, shabby

Example: She was very hurt by his unkind words.

14. Undiplomatic

Definition: being, or appearing insensitive and tactless

Synonyms: very direct, uncaring, inconsiderate

Example: He could be the most undiplomatic man ever to hold such a post.

15. Uncouth

Definition: lacking good manners, refinement, or grace

Synonyms: uncivilized, uncultured, unrefined, unpolished

Example: She may embarrass you with her uncouth behavior.

16. Unruly

Definition: disorderly and disruptive and not amenable to discipline, or control

Synonyms: lawless, disruptive, uncontrollable, disobedient

Example: He is a very unruly boy and that’s because he has been brought up as a spoiled brat in a wealthy family.

17. Unwitting

Definition: (of a person) not aware of the full facts

Synonyms: unknowing, unconscious, innocent, unaware

Example: She’s an unwitting participant.

Negative Adjectives Starting with U to Describe an Event

1. Unexpected

Definition: not expected, or regarded as likely to happen

Synonyms: unforeseen, sudden, abrupt,

Example: His death was totally unexpected.

2. Unenviable

Definition: difficult, undesirable, or unpleasant

Synonyms: disagreeable, unwanted, difficult, thankless

Example: I had the unenviable task of cleaning up after the party.

3. Unfortunate

Definition: having or marked by bad fortune; unlucky

Synonyms: unlucky, pitiful, unhappy, miserable

Example: It was an unfortunate accident.

Negative Adjectives Starting with U to Describe a Place

1. Unsafe

Definition: not safe; dangerous

Synonyms: risky, perilous, insecure, harmful

Example: Drinking water in some areas may be unsafe.

2. Unappetizing

Definition: not inviting or attractive; unwholesome

Synonyms: unpleasant, tasteless, unattractive.

Example: Only unappetizing parts of animal carcasses remained for the domestic market.

3. Untidy

Definition: not arranged neatly and in order

Synonyms: disordered, messy, jumbled

Example: The place was dreadfully untidy.

4. Uninviting

Definition: (especially of a place or prospect) not attractive

Synonyms: unappealing, joyless, inhospitable, repellent

Example: The house was dark and uninviting.

5. Unwilling

Definition: not ready, eager, or prepared to do something

Synonyms: reluctant, hesitant, involuntary, enforced

Example: Governments seem to be unwilling to use any but the most primitive strategies.

6. Unlikely

Definition: not likely to happen, be done, or be true; improbable

Synonyms: doubtful, improbable, not likely, unrealistic

Example: They have built hotels in the most unlikely places.

7. Unattractive

Definition: not pleasing, or appealing to look at

Synonyms: ugly, ill-favored, displeasing, unlovely

Example: The older town is irregularly built and seems unattractive.

Negative Adjectives Starting with U to Describe Emotions, Personality, and Feelings

1. Uneasy

Definition: causing or feeling anxiety; troubled

Synonyms: worried, tense, anxious, nervous

Example: She felt guilty now and a little uneasy.

2. Uncomfortable

Definition: causing, or feeling slight pain, or physical discomfort

Synonyms: painful, unbearable, confining, intolerable

Example: He began to feel uncomfortable at the man’s hard stare.

3. Unmotivated

Definition: not having an interest or enthusiasm for something, especially work, or study

Synonyms: dull, apathetic, not interested

Example: Lazy and unmotivated students are often left behind in their studies.

4. Undesirable

Definition: not wanted or desirable because harmful, objectionable, or unpleasant

Synonyms: disagreeable, unenviable, unwanted, awful

Example: This may have undesirable consequences.

5. Ungrateful

Definition: not feeling, or showing sympathy

Synonyms: unthankful, unappreciative

Example: She’s so ungrateful for everything we do.

6. Unsatisfactory

Definition: not satisfactory; not good enough

Synonyms: disappointing, dissatisfying, undesirable

Example: They demand a refund on unsatisfactory goods.

7. Uncanny

Definition: strange or mysterious, especially in an unsettling way

Synonyms: unnatural, eerie, abnormal, odd

Example: He felt the uncanny sensation that she understood his tormented existence.

8. Unnerving

Definition: causing one to lose courage, or confidence; disconcerting

Synonyms: discourage, dispirit, demoralize, dishearten

Example: The hostility in his voice and expression was unnerving.

9. Unfriendly

Definition: not friendly

Synonyms: hostile, disagreeable, aggressive, unwelcoming

Example: The old man looked cross and unfriendly.

10. Ungainly

Definition: (of a person or movement) awkward; clumsy

Synonyms: clumsy, inelegant, gangling, graceless

Example: He was ungainly, with rickety legs.

11. Undeserved

Definition: not warranted, merited, or earned

Synonyms: worthless, despicable, slimy, vile

Example: She had an undeserved reputation for rudeness.

12. Unimpressed

Definition: believing that something is not important, not good, or not true

Synonyms: impartial, neutral, apathetic, unresponsive

Example: I am unimpressed by their research.

13. Unkempt

Definition: (especially of a person) having an untidy, or disheveled appearance

Synonyms: untidy, messy, shaggy, scruffy

Example: The children were unwashed and unkempt.

14. Unseemly

Definition: (of behavior or actions) not proper, or appropriate

Synonyms: improper, unsuitable, unfitting, shameful

Example: Everyone was shocked by his unseemly conduct.


Most people learn that adjectives are words that modify nouns. But actually adjectives can do more than that. They can also act as a complement to liking verbs or verbs like to feel, to seem, or to taste that describes a state of being or a sensory experience.

Above are some arranged adjectives starting with the letter “U”, which we use for formal letters and everyday conversation. After understanding the proper meaning, you can use them where it is appropriate.

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