Synonyms of grouchy

1 Syllable
cross, grim, gruff
2 Syllables
crabbed, sulky, grousing, grumbling, peevish, crosser, crankiest, tetchier, crabbier, mumpish, touchy, churlish, whiny, grumpy, tetchy, touchiest, grimmer, carping, crusty, snappy, crabby, gruffer, bearish, surly, cranky, gruffest, grumpier, chuffier, grimmest, surlier, chuffy, touchier, waspy, testier, testy, crankier
3 Syllables
dyspeptic, petulant, unfriendly, crotchety, morose, ornery, querulous, disgruntled
4 Syllables
discontented, disagreeable, perversive, ill-tempered, irascible, irritable, cantankerous, unneighborly, ill-humored
6 Syllables
oversensitive