WordWeb Online

1. Experiencing or marked by or causing sadness or sorrow or discontent
   "unhappy over her departure"; "unhappy with her raise"; "after the argument they lapsed into an unhappy silence"; "had an unhappy time at school"; "the unhappy (or sad) news"; "he looks so unhappy"
    
2. Generalized feeling of distress
   - dysphoric, distressed
    
3. Causing discomfort
   "the unhappy truth"
    
4. Marked by or producing unhappiness
   "unhappy caravans, straggling afoot through swamps and canebrakes";
   - infelicitous

Derived forms: unhappiest, unhappier

See also: cheerless, dejected, depressing, discontent, discontented, felicity, happiness, infelicitous, joyless, lovesick, miserable, sad, sorrowful, suffering, uncheerful, unfortunate, unpleasant, wretched

Antonym: happy

Encyclopedia: Unhappy