sour

1 causing or characterized by the one of the four basic taste sensations that is produced chiefly by acids the sour candy made our mouths all wrinkly inside Synonyms acid, acidic, acidulous, sourish, tart, tartish, vinegary Related Words dry, soured, unsweetened; pungent, sharp, tangy, zestful, zesty, zingy; astringent, puckery hyperacid Near Antonyms sweet; bland, smooth; flat, flavorless, insipid, savorless, tasteless, zestless; dilute, thin, watery, weak

2 not giving pleasure to the mind or senses you'll have to face up to the sour truth of the matter Synonyms bad, bitter, disagreeable, displeasing, distasteful, harsh, icky, nasty, rotten, unpleasant, uncongenial, unlovely, unpalatable, unpleasing, unsavory, unwelcome, wicked, yucky (also yukky)Related Words abhorrent, abominable, appalling, awful, beastly, bilious, disgusting, dreadful, foul, ghastly, gnarly [slang], god-awful, gross, hateful, hellish, hideous, horrendous, horrible, horrid, invidious, loathsome, nauseating, nauseous, noisome, obnoxious, obscene, odious, offensive, repellent (also repellant), repugnant, repulsive, revolting, revulsive, scandalous, seamy, shocking, sick, sickening, ugly, unholy, vile, villainous; aggravating, annoying, galling, irritating, vexing; crappy [slang], cruddy, crummy (also crumby), lousy, miserable, sucky [slang], wretchedNear Antonyms delectable, delicious, delightful, dreamy, felicitous; amiable, charming, cheery, friendly, jolly, kindly, sweetAntonyms agreeable, congenial, good, grateful, gratifying, nice, palatable, pleasant, pleasing, pleasurable, satisfying, welcome

3 falling short of a standard things started off well, but now it's all gone sour Synonyms bastard, bush, bush-league, crummy (also crumby), deficient, dissatisfactory, ill, inferior, lame, lousy, off, paltry, poor, punk, bad, suboptimal, subpar, substandard, unacceptable, unsatisfactory, wack [slang], wanting, wretched, wrongRelated Words abysmal, atrocious, awful, bitchin' [slang], brutal, damnable, deplorable, detestable, disastrous, dreadful, execrable, gnarly [slang], horrendous, horrible, pathetic, stinky, sucky [slang], terrible, unspeakable; defective, faulty, flawed; egregious, flagrant, gross; bum, cheesy, coarse, common, crappy [slang], cut-rate, junky, lesser, low-grade, low-rent, mediocre, miserable, reprehensible, rotten, rubbishy, second-rate, shoddy, sleazy, trashy; abominable, odious, vile; useless, valueless, worthless; inadequate, insufficient, lacking, meager (or meagre), mean, miserly, niggardly, scanty, shabby, short, skimp, skimpy, spare, stingy; miscreant, scurrilous, villainous; counterfeit, fake, phony (also phoney), shamNear Antonyms classic, classical; A1, bang-up, banner, boss [slang], capital, choice, crackerjack, dandy, divine, excellent, exceptional, fabulous, fine, first-class, first-rate, grand, great, groovy, heavenly, high-test, jim-dandy, keen, marvelous (or marvellous), mean, neat, nifty, noble, par excellence, perfect, premium, prime, sensational, slick, splendid, stellar, sterling, superb, superior, superlative, supernal, swell, terrific, tip-top, top, top-notch, unsurpassed, wonderful; better, exceptional, fancy, high-grade, special, sufficient; average, borderline, fair, mediocre, middling, minimal, so-so, unexceptional; suitable, useful, worthy; gratifying, satisfyingAntonyms acceptable, adequate, all right, decent, fine, OK (or okay), passable, respectable, satisfactory, standard, tolerable