English Words: U

Not prepared; caught by surprise.

Simple, humble, not pretentious, plain.

Lacking moral values.

Not problematic (presenting problems) or not controversial.

Not processed.

Not productive; useless; fruitless.

Unbecoming of a professional; hence inappropriate in the workplace.

Not making a profit.

Not promising.

Not prompted; not urged or instigated; spontaneous.

Not protected; lacking defence or protection; exposed.

Not proved.

Happening without provocation.

Not published.

Not punished

Not qualified: ineligible; unfit for a position or task.

That cannot be quenched.

Undeniable, obvious.

Without question; beyond doubt; indubitably.

Not subjected to an interrogation

Believing without question; having absolute loyalty.

Without asking questions or having doubts. With complete obedience and without making any opposition.

Uneasy and restless; unable to settle.

Used in speech to indicate the end of a quotation.

Initialism of University of Nevada, Reno.

Not ranked.

To cause (something) to no longer be ravelled or tangled; to disentangle, to untangle.

Disentangled or cleared up.

The act of becoming unravelled.

Unable to be reached; impossible to attain.

Not having been read.

Not written clearly enough to be deciphered.

Not ready.

Not real or substantial; having no actual presence in reality; lacking the characteristics of reality.

Not realistic.

In an unrealistic manner.

Lack of reality or real existence.

Not realized; possible to obtain or achieve, yet not obtained or achieved.

Without the ability to reason; unreasoning.

In an unreasonable manner.

Alternative spelling of unrecognizable.

Non-Oxford British English standard spelling of unrecognized.

That cannot be recognized, especially because of substantial changes.

Not recognized:

Not recorded.

Not recoverable; that cannot be recovered.

Not redacted; uncensored.

crude, raw or unprocessed

Not registered.

Not regulated: not subject to any regulations.