effervescent

joyously unrestrained candidates for positions on the cheerleading squad should have naturally effervescent personalities Synonyms bouncy, bubbly, buoyant, crank [chiefly dialect], exuberant, frolic, frolicsome, gamesome, gay, high-spirited, vivaciousRelated Words extroverted (also extraverted), outgoing, uninhibited; carefree, happy-go-lucky, insouciant, joyful, lighthearted, lively, sprightly; boisterous, raucous, rollicking, rowdy; giddy, light-headed, overexuberant, silly; ecstatic, euphoric, lyric, rapturous; audacious, bold, brash, brazen, impertinent, impudent, insolent, saucyNear Antonyms constrained, inhibited, repressed, restrained, subdued; impassive, phlegmatic, stoic (or stoical), stolid; depressed, dour, glum, morose, surlyAntonyms low-spirited, sullen