Synonyms and related words :
blithe, blithesome, boon, buxom, cheerful, delighted, ecstatic, elated, exhilarated, exuberant, exultant, frivolous, gay, happy, hilarious, jocular, jocund, jolly, jovial, joyful, joyous, jubilant, laughter-loving, lighthearted, merry, mirth-loving, mirthful, overjoyed, pleased, rapturous, rejoicing, risible