English Words: U

23,789 words · Page 118 of 476

undefiniteadj

indefinite

undefinitelyadv

Indefinitely.

undefinitionnoun

The act of undefining; removal or cancellation of a definition.

undefinitiveadj

Not definitive.

undefinitizedadj

Not definitized.

undeflatedadj

Not deflated.

undeflectableadj

Not deflectable.

undeflectedadj

Not deflected.

undeflectibleadj

Alternative form of undeflectable.

undefloweredadj

Not having been deflowered; pure, virginal.

undefoliatedadj

Not defoliated.

undeformverb

To restore from a deformed state; to change back to its true or original shape.

undeformableadj

Not capable of being deformed.

undeformedadj

Not deformed.

undefraudedadj

Not having been defrauded.

undefrayedadj

Not defrayed.

undefrostedadj

Not defrosted.

undeftadj

Not deft.

undefusedadj

Not defused.

undegassedadj

From which the gas has not been removed

undegeneracynoun

The quality of being undegenerate.

undegenerateadj

Not degenerate.

undegeneratedadj

Not degenerated

undegeneratingadj

Not degenerating.

undegradabilitynoun

The condition of being undegradable

undegradableadj

That is not easily degraded

undegradedadj

Not degraded

undegradingadj

Not degrading.

undegranulatedadj

Not degranulated

undegummedadj

Not degummed; not (yet) having had gum removed.

undehiscentadj

Not dehiscent

undehumanizedadj

Not dehumanized.

undehuskedadj

not dehusked

undehydratedadj

Not dehydrated.

undeifyverb

To degrade from the state of deity; to deprive godness.

undeisticadj

Not deistic.

undejectedadj

Not dejected.

undelayableadj

Not delayable.

undelayedadj

Not delayed.

undelayedlyadv

Without delay.

undelayingadj

Not delaying; prompt.

undelectableadj

Not delectable.

undelectablyadv

In an undelectable manner.

undelegatedadj

nondelegated

undeletabilitynoun

The state or quality of being undeletable.

undeletableadj

That cannot be deleted; indelible.

undeleteverb

To recover (a file, record, etc.) from a deleted state; restore.

undeleternoun

A program that undeletes.

undeleteriousadj

Not deleterious.

undeletionnoun

Restoration of previously deleted content.

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 118. 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.