English Words: U

23,789 words · Page 134 of 476

underfellownoun

An underling; a subordinate.

underfeltnoun

A layer of felt-like material laid underneath a wall-to-wall carpet

underfermentverb

To ferment insufficiently.

underfermentationnoun

inadequate fermentation

underfermentedadj

Iinsufficiently fermented.

underfertiliseverb

Alternative form of underfertilize.

underfertilizationnoun

Inadequate fertilization; the underuse of fertilizer.

underfertilizeverb

To treat (plants) with too little fertilizer.

underfillverb

To fill with an insufficient amount.

underfillingnoun

The underneath structure of a building.

underfilternoun

A morphological filter (idempotent operator) whose image is a subset of the domain.

underfinanceverb

To finance inadequately.

underfinancedadj

Lacking sufficient financing

underfinancingverb

present participle and gerund of underfinance

underfinishedadj

Of animals reared for meat: having less fat than is desirable.

underfireverb

To heat from below.

underfiredadj

Fired at a low (or excessively low) temperature.

underfiringnoun

Intentional operation of a boiler, furnace, oven, etc., at a low level.

underfishverb

To fish less than would still be sustainable; to underuse (an area) for fishing.

underfishedadj

Fished less than would still be sustainable; suitable for a greater amount of fishing.

underfitverb

To use a statistical model that has too few parameters relative to the size of the sample.

underfixverb

To fix inadequately, or below what is required or expected

underflannelnoun

A kind of underclothing, a precursor of the union suit.

underflavoredadj

Lacking sufficient flavor.

underflavournoun

Synonym of undertaste.

underfleshedadj

Lacking flesh or substance; skinny or scanty.

underflipnoun

A flip trick, the flipping of a skateboard by flicking the underside of the board, while riding on the board.

underflooradj

Located beneath the floor.

underflooringnoun

A layer of flooring underneath the top layer or carpet.

underflownoun

A current flowing below the surface.

underflushnoun

A tinge of colour showing through from beneath.

underfocusnoun

The state of a microscope that is focused slightly in front of the specimen

underfocusedadj

Having insufficient focus

underfoggedadj

Insufficiently fogged.

underfoldedadj

Folded underneath.

underfollowedadj

Not adequately followed; having too small a following.

underfongverb

To seduce, entrap; surround, overcome.

underfootadj

Situated under one's foot or feet.

underfootingnoun

The terrain or other surface underfoot.

underfootmannoun

A subordinate footman.

underforestedadj

Too sparsely forested.

underfortifyverb

To fortify insufficiently.

underfoudnoun

A lower-ranking foud; a subbailiff.

underframenoun

The supporting structure of a piece of furniture, a vehicle, etc.

underframeworknoun

An underlying or supportive framework or similar structure.

underframingnoun

An underframe.

underfreightverb

To load with too little freight.

underfrequencynoun

The condition where the frequency of an electrical supply drops below normal parameters.

underfrictionnoun

A system for preventing a rollercoaster train from jumping off the track while in violent motion, using additional wheels under the track.

underfringenoun

A lower fringe; a fringe underneath something.

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 134. 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.