irritable, fractious, fretful, cross, petulant, pettish, crabbed, crotchety, cantankerous, curmudgeonly, disagreeable, miserable, morose, peppery, on edge, edgy, impatient, complaining, querulous;

bitter, moody, in a bad mood, grumpy, huffy, scratchy, out of sorts, out of temper, ill-tempered, bad-tempered, ill-natured, ill-humoured, peevish, sullen, surly, sulky, sour, churlish, touchy, testy, tetchy, snappish, waspish, prickly, crusty, bilious, liverish, dyspeptic, splenetic, choleric

informal snappy, chippy, grouchy, cranky, whingeing, whingy

British informal narky, ratty, eggy, like a bear with a sore head

North American informal sorehead, soreheaded, peckish

Australian/New Zealand informal snaky

dated miffy