English Words: U

23,789 words · Page 53 of 476

unattributedadj

Lacking attribution; of unknown authorship

unattributiveadj

Not attributive.

unattunedadj

not attuned

unattunednessnoun

The quality of being unattuned.

unaunoun

Linnaeus's two-toed sloth, Choloepus didactylus, a two-toed sloth native to South America.

unauctionedadj

Not auctioned.

unaudaciousadj

Not audacious.

unaudibleadj

inaudible

unaudiblyadv

Archaic form of inaudibly.

unaudiencedadj

Not given an audience; not received or heard.

unauditableadj

That cannot be audited.

unauditedadj

Not audited.

unauditionedadj

Not having gone through an audition.

unaugmentableadj

That cannot be augmented.

unaugmentedadj

Not augmented.

unaugustadj

Not august.

unaunswerableadj

Obsolete spelling of unanswerable.

unauntlyadj

Alternative form of un-auntly.

unauspiciousadj

Inauspicious.

unauspiciouslyadv

In an unauspicious manner.

unauspiciousnessnoun

The quality of being unauspicious.

unaustereadj

Not austere.

unauthedadj

unauthenticated

unauthenticadj

Not authentic; inauthentic.

unauthenticaladj

Inauthentic.

unauthenticallyadv

In a way that is not authentic.

unauthenticateverb

To refuse to authenticate; to render inauthentic.

unauthenticatedadj

Having no authentication

unauthenticitynoun

Quality of not being authentic.

unauthoredadj

Not authored; without an author; unwritten.

unauthorisedadj

Alternative spelling of unauthorized.

unauthorisedlyadv

Alternative spelling of unauthorizedly.

unauthoritativeadj

Not authoritative.

unauthoritativelyadv

In an unauthoritative manner.

unauthoritativenessnoun

The quality of being unauthoritative.

unauthorizableadj

Not authorizable.

unauthorizeverb

To disown the authority of; to repudiate.

unauthorizedadj

Not having any authority.

unauthorizedlyadv

In an unauthorized way; without authorization.

unauthorizednessnoun

The quality of being unauthorized.

unauthorlyadj

Not authorly; not befitting an author.

unautisticadj

Not autistic.

unautoclavedadj

Not autoclaved.

unautocorrelatedadj

Not autocorrelated

unautocraticadj

Not autocratic.

unautographedadj

Not autographed.

unautomatableadj

Unable to be automated; not automatable.

unautomatedadj

Not automated.

unautopsiedadj

Not having undergone autopsy.

unautumnaladj

Not autumnal.

Spelling & Dictionary Insight

The English alphabetical index for the letter U contains 23,789 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 476 pages, and you are currently viewing page 53. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "U" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.