unhappya.1. Not happy or fortunate; unfortunate; unlucky; as, affairs have taken an unhappy turn.()2. In a degree miserable or wretched; not happy; sad; sorrowful; as, children render their parents unhappy by misconduct.()3. Marked by infelicity; evil; calamitous; as, an unhappy day.(Milton.)4. Mischievous; wanton; wicked.(Shak.)()