effervescent

Synonyms: airy boiling bouncy bubbling bubbly carbonated elastic expansive fermenting frothing frothy resilient sparkling volatile

Antonyms: flat stale

Synonyms: animated bouncy brash bubbly buoyant ebullient excited exhilarated exuberant gleeful happy high-spirited hilarious in high spirits irrepressible jolly joyous lively merry mirthful sprightly vital zingy

Antonyms: dull inactive serious sober unenthusiastic