No Encyclopedia Entry for Unhappy
Noah Webster's New International Dictionary of the English Language
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.