Definition of testy:
teasing, irritable, gravelly, disagreeable, peppery, pestering, grating, raspy, plaguey, fretful, pestiferous, refractory, cantankerous, quick-tempered, rasping, scratchy, grumpy, tippy, pettish, nettlesome, abrasive, galling, peevish, vexatious, ugly, irascible, snappy, crabbed, choleric, crabby, techy, tender, pesky, crank, cranky, cross, irritating, nasty, querulous, attitude, rough, uneven, mean, touchy, grouchy, spotty, tetchy, petulant, peckish, recalcitrant, feelings, excitable, fractious, touchy, snappish, vexing, annoying, ill-tempered, ill-natured, bad-tempered, plaguy, surly, bothersome, waspish.
Mebbe, mebbe I'm testy.- "The Mysterious Rider", Zane Grey.
- "The Man with a Shadow", George Manville Fenn.
So it happened that when, the Sunday following the announcement, Grant came with his father and Kenyon in the rattling old buggy up to the Nesbit home on Elm Street, Amos Adams found a rollicking, frivolous, mischievous host- but Grant Adams found a natty, testy, sardonic old man, who made no secret of his ill- humor.- "In the Heart of a Fool", William Allen White.