sour

Synonyms of SOUR

verb

turn, spoil, ferment, curdle, acidify, acerbate, envenom

adjective

cross, irritable, peevish, short-tempered, testy, touchy, grouchy, acrimonious

distasteful, bitter, irritating, vitriolic, unsavoury, unpleasant, disagreeable

caustic, cutting, stinging, sharp, keen, biting, harsh, dry

unripe, green

bitter, tart, tangy, acerb, rancid, acerbic, acidulous