Synonyms for Zippy (same or very similar meaning)
WordNet sense 1 (quick and energetic):
brisk, merry, rattling, snappy, spankingWordNet sense 2 (possessing or exerting or displaying energy):
energeticWordNet sense 3 (marked by lively action):
bouncing, bouncy, peppy, spiritedWordNet sense 4 (full of life and energy):
livelyFrom the ODE community, based on WordNetadd/edit