a. 1. Not happy or fortunate; unfortunate; unlucky; as, affairs have taken an unhappy turn. [ 1913 Webster ]
2. In a degree miserable or wretched; not happy; sad; sorrowful; as, children render their parents unhappy by misconduct. [ 1913 Webster ]
3. Marked by infelicity; evil; calamitous; as, an unhappy day. “The unhappy morn.” Milton. [ 1913 Webster ]
4. Mischievous; wanton; wicked. [ Obs. ] Shak. [ 1913 Webster ]
-- Un*hap"pi*ly adv. -- Un*hap"pi*ness, n. [ 1913 Webster ]