Synonyms and Antonyms of acid
1 causing or characterized by the one of the four basic taste sensations that is produced chiefly by acids <an acid-tasting medicine> Synonyms sour, acidic, acidulous, sourish, tart, tartish, vinegaryRelated Words dry, soured, unsweetened; pungent, sharp, tangy, zestful, zesty, zingy; astringent, puckery hyperacidNear Antonyms sweet; bland, smooth; flat, flavorless, insipid, savorless, tasteless, zestless; dilute, thin, watery, weak
2 having or showing a habitually bad temper <with her acid personality, my aunt could be relied upon to bring some much-needed balance to the holiday gush> Synonyms ill-tempered, bearish, bilious, bloody-minded [chiefly British], cantankerous, disagreeable, dyspeptic, ill-humored, ill-natured, ornery, splenetic, surlyRelated Words choleric, crabby, cranky, crotchety, fussy, grouchy, grumpy, querulous; irascible, irritable, peevish, peppery, petulant, quick-tempered, short-tempered, snappish, snippy, testy, touchy; argumentative, contentious, contrary, cussed; angry, exasperated, indignant, irate, mad, upset, uptight; depressed, dour, glum, morose, sullen; anal, old-maidish, schoolmarmishNear Antonyms agreeable, amicable, congenial, friendly, pleasant; benign, gentle, kind, nice, sweet; bubbly, cheerful, cheery, effervescent, exuberant, high-spirited, joyful, lighthearted, lively, vivacious; content, glad, happy; calm, placid, serene; long-suffering, patient, tolerantAntonyms amiable, good-humored, good-natured, good-tempered
3 marked by the use of wit that is intended to cause hurt feelings <a cultural gadfly known for an acid tongue that spares no one> Synonyms acerb, acerbic, sarcastic, acidic, acidulous, acrid, barbed, biting, caustic, corrosive, cutting, mordant, pungent, sardonic, satiric (or satirical), scalding, scathing, sharp, smart-aleck, smart-alecky, smart-mouthed, snarky, tartRelated Words brisk, cross, sharp-tongued, sour, sourish, spiky (also spikey), tartish; incisive, keen, poignant, trenchant; cynical, dry, ironic (also ironical), wry; facetious, flippant, tongue-in-cheek; acrimonious, bitter, resentful, vitriolic; harsh, rough, severe, stringent; abrupt, blunt, brusque (also brusk), concise, crisp, curt, gruff, pithy, snippety, snippy, succinct, terse; backhanded, insincereNear Antonyms amusing, droll, merry, playful, sportive, waggish; gentle, mild; bland; good-humored, good-natured; diplomatic, polite, smooth, suave, urbane; affable, cordial, genial, gracious, hospitable, sociable
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