Definitions: (1) suitable to the occasion <as a well-chosen word or phrase>; (2) apropos and pleasing in expression or style; pertinent and to the point; (3) having an aptness that is opportune, telling, or graceful; (4) happy; pleasant; delightful; enjoyable
See also: Appropriate
Derivation: Latin, “to make happy”
Synonyms: joyous, successful, timely