Felicitous

Definitions: (1) suitable to the occasion <as a wellchosen 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