tetchy

hypersensitive, oversensitive, sensitive, supersensitive, tender

choleric, crabby, cranky, cross, cross-grained, crotchety, grouchy, grumpy, irascible, irritable, peevish, perverse, pettish, petulant, prickly, quick-tempered, raspy, ratty, short-tempered, snappish, snappy, snarky, snippety, snippy, stroppy [British], stuffy, testy, waspish

bearish, bilious, cantankerous, curmudgeonly, disagreeable, dyspeptic, ill-humored, ill-natured, ill-tempered, ornery, querulous, surly