Thesaurus

Synonyms for Sulky include:

Acheronian, Acherontic, aphotic, atrabilious, bad-tempered, bilious, black, bristly, bumper-to-bumper, caliginous, cantankerous, choleric, churlish, Cimmerian, crabbed, crabby, cranky, crepuscular, cross, crotchety, crusty, curmudgeonly, currish, dark, darkened, darkening, darkling, delayed, dilatory, dim, disagreeable, dour, dragging, drawn-out, dusky, dyspeptic, fractious, fussy, gloomful, glooming, gloomy, glowering, glum, gradual, grouchy, gruff, grumpy, hot-tempered, hotheaded, huffish, ill-humored, ill-humoured, ill-natured, ill-tempered, irascible, irritable, laggard, lazy, lightless, liverish, long-play, long-playing, misanthropic, misanthropical, misogynous, moody, morose, nagging, nettlesome, ornery, peckish, peevish, pettish, petulant, pitch-black, pitch-dark, pokey, poky, prickly, quick-tempered, saturnine, scratchy, semidark, shirty, short-tempered, shrewish, slow, slow-moving, sluggish, snappish, snappy, snorty, sour, splenetic, spoiled, spoilt, Stygian, subdued, sulky, sullen, surly, techy, tenebrific, tenebrious, tenebrous, testy, tetchy, twilight, twilit, ugly, unhurried, unilluminated, unlighted, unlit, unpleasant, vinegarish, vinegary, waspish

sulky is a ADJ.