- uncompleted
- unelaborated
- unconvincing
- unlikely
- untrustworthy
- untrusty
- unfazed
- unhesitating
- unheralded
- useless prattling
- unit element
- unwritten constitution
- unpleasantness
- unfruitful
- urine
- unentertaining
- unsightly
- unchristian
- used as a suffix to denote a system (as
- unexceptionable
- unfeelingly
- undogmatical
- undogmatic
- unstinted
- unshockable
- unstinting
- urban type
- urban form
- unwonted
- unbusinesslike
- uncommercial
- unfaithfully
- unwily
- unobtrusive
- uncautious
- unguarded
- unvarnished
- unripened
- uncongenial
- uninterested
- unctuously
- unconscientious
- unclaimed property
- unhumorous
- unobliging
- unliquidated
- unprecise
- unstaid
- unsteadfast
- unsettled