Synonyms and related words :
active, activist, activistic, acute, aggressive, alive, animated, bouncing, bouncy, breezy, brisk, bubbly, chipper, dynamic, ebullient, effervescent, energetic, enterprising, enthusiastic, forceful, forcible, frisky, full of go, full of life, full of pep, go-go, hearty, impetuous, incisive, intense, keen, kinetic, live, lively, living, lusty, mercurial, mettlesome, militant, peppy, perky, pert, quicksilver, robust, snappy, spanking, spirited, sprightly, spry, strenuous, strong, take-charge, take-over, trenchant, vibrant, vigorous, vivacious, vivid, zestful, zesty, zingy, zippy