Synonyms and related words :
affable, amiable, bantering, blithe, blithesome, boon, buxom, chaffing, convivial, facetious, festal, festive, free and easy, frivolous, gala, gay, genial, gladsome, gleeful, good-natured, hail-fellow-well-met, hearty, hilarious, humorous, jocose, jocular, jocund, jolly, jollying, joshing, joyful, joyous, laughter-loving, lighthearted, merry, merrymaking, mirth-loving, mirthful, on the loose, rejoicing, risible, sociable