- (superl.) Favored by hap, luck or fortune; lucky; fortunate; successful; prosperous; satisfying desire; as, a happy expedient; a happy effort; a happy venture; a happy omen.
- (superl.) Experiencing the effect of favorable fortune; having the feeling arising from the consciousness of well-being or of enjoyment; enjoying good of any kind, as peace, tranquillity, comfort; contented; joyous; as, happy hours, happy thoughts.
- (superl.) Dexterous; ready; apt; felicitous.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Happy. Retrieved October 2, 2026, from http://smartdefine.org/happy/definitions/2014983 |
| Chicago | Webster's. 2011. "Happy" http://smartdefine.org/happy/definitions/2014983 (accessed October 2, 2026). |
| Harvard | Webster's 2011, Happy, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/happy/definitions/2014983>. |
| MLA | Webster's. "Happy" 27 May 2011. Web. 2 October 2026. <http://smartdefine.org/happy/definitions/2014983> |