English Words: U

23,789 words · Page 36 of 476

unacknowledgeableadj

Not acknowledgeable.

unacknowledgedadj

Not acknowledged.

unacknowledgmentnoun

Lack of acknowledgment; failure to acknowledge.

Having poor acoustic properties; not conducive to the projection of sound; tending to muffle or muddy sounds.

To undo (one's or someone's) acquaintance (with someone or something).

unacquaintableadj

Not acquaintable.

unacquaintancenoun

The state or condition of being unacquainted; unfamiliarity with something.

unacquaintedadj

Not acquainted, unfamiliar (with someone or something).

unacquaintedlyadv

Without being acquainted or familiar.

unacquaintednessnoun

The state or condition of being unacquainted; unfamiliarity with something.

unacquiescentadj

Not acquiescent.

unacquirableadj

That cannot be acquired.

To lose or get rid of; reverse the possession or acquisition of; unget

Not acquired.

unacquisitiveadj

Not acquisitive.

unacquisitivenessnoun

The quality of not being acquisitive.

unacquittableadj

That cannot be acquitted.

Not acquitted.

unacrimoniousadj

Not acrimonious.

Not acrobatic.

Not acrylated

To undo the acting of; to reverse (an action).

Impossible to act.

Not acted.

unactednessnoun

The state or condition of being unacted.

That does not take action.

Not actinic.

Lack or absence of action; an act of no action

unactionableadj

Not actionable.

Not having been actioned; regarding which nothing has been done.

unactivatableadj

Incapable of being activated.

Not activated; (often, especially) never yet activated.

Not active; inactive.

Synonym of inactively.

unactivenessnoun

inactivity

The state or condition of being unactive; inactivity.

Not actorish.

Not actorlike.

Not actual.

unactualitynoun

The property of not being actual.

unactualizableadj

That cannot be actualized.

unactualizedadj

Not actualized.

Not actuated.

Not acute.

Not acylated

To undo the process of adaptation; to revert or restore to an original form.

unadaptabilitynoun

The condition of being unadaptable

Not adaptable.

unadaptablenessnoun

The quality of being unadaptable.

Such that it cannot be adapted.

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 36. 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.