WordNet sense 1 (full of high-spirited delight):

gleeful, joyful

WordNet sense 2 (full of or characterized by joy):

joyous

WordNet sense 3 (joyful and proud especially because of triumph or success):

exultant, prideful, rejoicing, triumphal, triumphant, exulting

WordNet sense 4 (exultantly proud and joyful; in high spirits):

elated