Synonyms and related words :
active, activist, activistic, alive, animated, bouncing, bouncy, breezy, brisk, bubbly, chipper, ebullient, effervescent, energetic, frisky, full of go, full of life, full of pep, live, lively, mercurial, militant, peppy, perky, pert, quicksilver, smacking, snappy, spanking, spirited, sprightly, spry, vivacious