SNAPPY
alert, brisk, lively, merry, rattling, snappy, spanking, zippy
(adjective) quick and energetic; “a brisk walk in the park”; “a lively gait”; “a merry chase”; “traveling at a rattling rate”; “a snappy pace”; “a spanking breeze”
dapper, dashing, jaunty, natty, raffish, rakish, spiffy, snappy, spruce
(adjective) marked by up-to-dateness in dress and manners; “a dapper young man”; “a jaunty red hat”
snappish, snappy
(adjective) apt to speak irritably; “a snappish tone of voice”
crisp, frosty, nipping, nippy, snappy
(adjective) pleasantly cold and invigorating; “crisp clear nights and frosty mornings”; “a nipping wind”; “a nippy fall day”; “snappy weather”
snappy, whipping
(adjective) smart and fashionable; “snappy conversation”; “some sharp and whipping lines”
Source: WordNet® 3.1
Etymology
Adjective
snappy (comparative snappier, superlative snappiest)
(informal) Rapid and without delay.
(informal) Irritable.
(informal) Tidy; well-dressed; sharp.
Chilly, brisk, sharp.
Synonyms
• (rapid and without delay): fast, immediate, quick
• (irritable): irritable, peevish, testy, tetchy
Source: Wiktionary
Snap"py, a.
Definition: Snappish. [Colloq.]
Source: Webster’s Unabridged Dictionary 1913 Edition