- Unmake
- Unman
- Unmarried person
- Unmarried youth
- Unmeaning
- Unmerited
- Unmistakably
- Unmolested
- Unnameable
- Unnecessary
- Unnecessary expenditure
- Unnerve
- Unnervingly
- Unofficial
- Unopposed
- Unorganised
- Unorious
- Unorthodoxy
- Unpaid
- Unparalleled
- Unpeeled
- Unperturbed
- Unpick
- Unpleasant
- Unplesant
- Unpolluted
- Unprecedented
- Unprecedentedly
- Unpredictable
- Unprejudiced
- Unpremeditated
- Unprepared
- Unpreparedness
- Unproductive
- Unproductively
- Unprofessionally
- Unprofitable
- Unread
- Unreasoning
- Unrehearsed
- Unrelated
- Unrequited
- Unrestricted
- Unripened
- Unrivaled
- Unruffled by waves
- Unruliness
- Unruly
- Unsaleable
- Unsalted
- Unscathed
- Unscientific
- Unseeing
- Unseemliness
- Unselfconscious
- Unselfconsciously
- Unselfish
- Unselfishly
- Unsentimental
- Unserviceable
- Unshaking
- Unshaven
- Unsightliness
- Unskilled
- Unsnarl
- Unsociable
- Unsown
- Unspeakably
- Unspoiled
- Unsteady
- Unsteady walk
- Unsterilized
- Unstudied
- Unsuccessful person
- Unsung
- Unsuspecting
- Unswerving
- Unsystematic
- Untainted
- Untangle
- Untapped
- Untarnished
- Untethered
- Untidily
- Untied
- Untimely
- Untimely death
- Untitled
- Unto
- Untold
- Untouchability
- Untouchable
- Untouched
- Untrue
- Untruthful
- Untutored
- Unusual
- Unvoiced
- Unwaged
- Unwashed