nippy
adjective informal
2 British so big a man is never going to be exactly nippy:
agile, lithe, sprightly, acrobatic, light-footed, nimble-footed, light, light on one's feet, fleet-footed, spry, lively, active, graceful, supple, limber, lissom, flexible, skillful, deft, dexterous, adroit;
informal twinkle-toed;
literary fleet, lightsome.
▷antonyms lumbering, clumsy.