adaptable, adaptive, afloat, airy, animated, blithe, bouncy, breezy, bright, carefree, cheerful, convalescent, corky, debonair, ebullient, effervescent, elastic, expansive, extensile, flexible, flexile, floatable, floating, floaty, free and easy, jaunty, light, light-hearted, lighthearted, lightsome, lively, peppy, perky, recuperative, recuperatory, resilient, responsive, reviviscent, springy, stretch, stretchable, stretchy, supernatant, vivacious, volatile