Synonyms of grousing

1 Syllable

mean, cross

2 Syllables

crabbed, sulky, fretful, peevish, sullen, childish, touchy, churlish, grumpy, tetchy, grumbly, carping, beefing, crusty, snappy, grouchy, whining, cussed, huffy, cranky, surly, waspish, fretting, growling, angry, captious, ugly, waspy, ogre, fractious

3 Syllables

complaining, plaintive, critical, petulant, crotchety, morose, ornery, out-of-sorts, querulous, caviling, fault-finding, splenetic, disgruntled

4 Syllables

ill-natured, cantankerous, bad-tempered, obstinate, short-tempered, pertinacious, acrimonious