English Words: U

23,789 words · Page 238 of 476

unimmuneadj

Not immune.

unimmunisedadj

Alternative form of unimmunized.

unimmunizedadj

Not having been immunized.

unimmuredadj

Not immured.

unimodaladj

Having, or operating in, a single mode.

unimodalitynoun

The condition of being unimodal.

unimodallyadv

In a unimodal way.

unimodeadj

Having, or operating in, a single mode.

unimodularadj

Having a determinant of 1 or -1.

unimodularitynoun

The condition of being unimodular

unimodularlyadv

In a unimodular manner.

unimolaradj

Having a molarity of one mole per litre

unimolecularadj

involving a single molecule

unimorphnoun

A cantilever that consists of one active layer and one inactive layer.

unimpactedadj

Not impacted.

unimpactfuladj

Not impactful.

unimpairverb

To restore from an impaired condition.

unimpairableadj

That can not be impaired.

unimpairedadj

Not impaired.

unimpairedlyadv

Without being impaired.

unimpaleverb

To release from being impaled.

unimpaledadj

Not having been impaled.

unimpartableadj

That cannot be imparted.

unimpartedadj

Not imparted.

unimpartialadj

Not impartial.

unimpartibleadj

That cannot be imparted.

unimpassionateadj

Not impassionate

unimpassionedadj

Not impassioned; lacking passion; without emotion.

unimpassionedlyadv

In an unimpassioned manner.

unimpassionednessnoun

The quality of being unimpassioned.

unimpassiveadj

Not impassive.

unimpatientadj

Not impatient.

unimpatientlyadv

In an unimpatient manner; without impatience.

unimpeachabilitynoun

The state or condition of being unimpeachable; blamelessness.

unimpeachableadj

Not able to be impeached or reproached.

unimpeachablenessnoun

The state or condition of being unimpeachable; blamelessness.

unimpeachablyadv

In an unimpeachable manner.

unimpeachedadj

Not impeached.

unimpededadj

Free from obstructions.

unimpededlyadv

Without obstruction.

unimpedibleadj

Not impedible

unimpelledadj

Not impelled.

unimpenetrableadj

Synonym of impenetrable.

unimperativeadj

Not imperative

unimperialadj

Not imperial.

unimperialisticadj

Not imperialistic.

unimperiledadj

Not placed in peril; not endangered or jeopardized; safe.

unimperiousadj

Not imperious

unimpersonatedadj

Not impersonated.

unimpertinentadj

Not impertinent.

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 238. 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.