Synonyms of sour

1 Syllable

sharp, bad, gruff, dour, tart, green, keen, harsh, rank, grim, dry

2 Syllables

crabbier, piquant, harshest, turned, harsher, crabby, acerb, salted, saltish, scratchy, stinging, dourer, saltiest, curdled, chuffy, bitter, soured, saltier, sulky, olid, grumbling, carious, mumpish, whiny, rotten, grumbly, pungent, gruffer, chuffier, fecal, musty, nosey, zestless, spoiled, stenchy, punker, jangly, sullen, clinker, biting, rancid, pouty, caustic, ranker, off-key, squawky, off-pitch, off-tone, rankest, hard-time, toucher, briny, salty, grimmer, tartness, gruffest, acrid, sourish, grimmest, cutting, acid, bitters, scratchier, stale

3 Syllables

unripe, venomed, hostile, petulant, astringent, peppery, embitters, acidic, unpleasant, ornery, feculent, strong-smelling, putrescent, bad-smelling, putrified, bittering, embitter, bitterest, absinthal, absinthian, pustular, sourpussed, fermented, unfriendly, liverish, bitterer, out-of-key, out-of-tune, tuneless, untuned, purulent, morose, resentful, acetous, hardnosed, acetic, querulous

4 Syllables

ill-tempered, cantankerous, oversalted, saliferous, distempered, vinegary, evil-smelling, remorseless, irritate, unsweetened, amaroidal, inedible, aftertaste, disharmonic, savoriness, perversive, unrepenting, unsavory, uninviting, acetose, overripe, unrewarding, cacophonous, unneighborly, unmelodious

5 Syllables

acidulated, putrefactive, unpleasant-tasting, unwholesome, palatableness