See querulous in Webster's New World Roget's A-Z Thesaurus II
adjective
Having or showing a bad temper:
bad-tempered, cantankerous, crabbed, cranky, cross, disagreeable, fretful, grouchy, grumpy, ill-tempered, irascible, irritable, nasty, peevish, petulant, snappish, snappy, surly, testy, ugly, waspish. (Informal) crabby, mean2. Idiom: out of sorts. See attitude
Learn more about querulous