English Words: U

23,789 words · Page 124 of 476

underadherencenoun

Insufficient adherence to a treatment.

underadherentadj

Showing underadherence to a treatment; insufficiently adherent.

underadjustverb

To adjust insufficiently

underadjustmentnoun

An insufficient adjustment

underadvantageverb

Insufficiently help.

underadvantagedadj

Having inadequate or below-average advantages.

underadvertisedadj

Inadequately advertised.

underageadj

Below the legal age (usually age 18) for some activity, such as consuming alcohol or engaging in sexual intercourse.

underagedadj

Underage; being or occurring below the legal age for a given activity.

underagentnoun

A subordinate agent.

underagernoun

A person who is underage.

underagitationnoun

Insufficient agitation (e.g. of a substance being mixed).

underaidverb

To aid clandestinely.

underailableadj

That cannot derail, or be derailed.

underailedadj

Not derailed.

underallocateverb

To allocate too little of.

underallocationnoun

A less than normal, or insufficient, allocation.

underallotmentnoun

An excessively small allotment or portion.

underambitionnoun

The quality of being underambitious.

underambitiousadj

Having too little ambition.

underamplificationnoun

insufficient amplification

underamplifyverb

To provide insufficient amplification.

underanalysisnoun

Inadequate analysis.

underanalyzeverb

To analyze inadequately.

underanalyzedadj

Insufficiently analyzed.

underanesthetizedadj

Inadequately anesthetized.

underangedadj

Not deranged or disrupted.

underanimatedadj

Inadequately animated.

underannotateverb

To provide too few annotations.

underannotatedverb

simple past and past participle of underannotate

underannotationnoun

insufficient annotation

underanticoagulatedadj

Insufficiently anticoagulated (having received warfarin therapy for only a short time)

underanticoagulationnoun

Insufficient anticoagulation (having received warfarin therapy for only a short time)

underapplicationnoun

The act of underapplying.

underapplyverb

To apply to an insufficient degree.

underappraisalnoun

An appraisal that undervalues something.

underappraiseverb

To appraise at too low a value.

underappreciateverb

To not hold in sufficiently high esteem.

underappreciatedadj

Not valued or appreciated as highly as one should be.

underappreciationnoun

insufficient appreciation

underappreciativeadj

Insufficiently appreciative; ungrateful.

underapproximateverb

To form an underapproximation of.

underapproximationnoun

An approximation that is lower than the true value.

underarchverb

To form an arch beneath.

underargueverb

To argue inadequately.

underarmnoun

The armpit.

underarousalnoun

Less than the normal extent of arousal

underarrestverb

To arrest at a disproportionately low rate.

underarticulateverb

To articulate insufficiently.

underarticulatedadj

Inadequately articulated.

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 124. 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.