Posted on August 29, 2015 by dimitriA Photo a day (355 of 365) hap·py (hăp′ē)adj. hap·pi·er, hap·pi·est1. Enjoying, showing, or marked by pleasure, satisfaction, or joy. See Synonyms at glad.2. Cheerful; willing: happy to help.3. Characterized by good luck. See Synonyms at fortunate.