Synonyms and related words :
airy, blithe, blithesome, breezy, buoyant, carefree, corky, debonair, effervescent, expansive, festive, free, free and easy, gay, glad, gleeful, happy, high-spirited, insouciant, jaunty, jocund, jolly, jovial, joyful, joyous, light, lightsome, lively, minded, mirthful, perky, resilient, spirited, sprightly, vivacious, volatile