1. Expressing antithesis or opposition
   "the adversative conjunction 'but' in 'poor but happy'"
   - oppositive

See also: disjunctive

• unobvious
• unoccupied
• unoffending
• unofficial
• unofficially
• unoiled
• unopen
• unopened
• unopposable
• unopposed
• unordered
• unorganised
• unorganized
• unoriented
• unoriginal
• unoriginality
• unoriginally
• unoriginated
• unornamented
• unorthodox
• unorthodoxy
• unostentatious
• unowned
• unoxygenated
• unpack