a.
1.
Merry, joyous, joyful, gay, jovial, airy, mirthful, jocund, playful, frolicsome, sportive, gamesome, funny, facetious, jocular, waggish, sprightly, lively, jocund, blithe, blithesome, cheery, cheerful.
2.
Plump, stout, lusty, bouncing, portly, chubby, in good case.