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