| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | bitter, sour in taste or effect |
| Synonyms: | acerb, acerbic, acetose, acid, acidulous, acrimonious, astringent, barbed, biting, caustic, cutting, dry, harsh, nasty, piquant, pungent, scathing, sharp, short, snappish, snappy, snippy, tangy, testy, trenchant, vinegary, wounding |
| Antonyms: | sweet |
| Main Entry: | acerbic |
| Part of Speech: | adjective |
| Definition: | bitter, sharp, or sour |
| Synonyms: | acidic, acrid, astringent, caustic, harsh, sharp, tart |
| Main Entry: | acid |
| Part of Speech: | adjective |
| Definition: | bitter, sour in taste |
| Synonyms: | acerbic, acidulous, biting, piquant, pungent, sharp, tart, vinegarish, vinegary |
| Antonyms: | bland, sweet |
| Main Entry: | acidulous |
| Part of Speech: | adjective |
| Definition: | bitter, sour |
| Synonyms: | acerb, acerbic, acetose, dry, piquant, sharp, tart |
| Antonyms: | sugary, sweet |
| Main Entry: | acrimonious |
| Part of Speech: | adjective |
| Definition: | nasty in behavior, speech |
| Synonyms: | acerbic, acid, angry, astringent, belligerent, biting, bitter, caustic, censorious, churlish, crabby, cranky, cross, cutting, indignant, irascible, irate, ireful, mad, mordant, peevish, petulant, rancorous, sarcastic, sharp, spiteful, splenetic, tart, testy, trenchant, wrathful |
| Antonyms: | kind, kindly, peaceable |
| Main Entry: | bitter |
| Part of Speech: | adjective |
| Definition: | pungent, sharp |
| Synonyms: | absinthal, absinthian, acerb, acerbic, acid, acrid, amaroidal, astringent, harsh, sour, tart, unsweetened, vinegary |
| Antonyms: | bland, mild, pleasant, sweet |
| Main Entry: | bluff |
| Part of Speech: | adjective |
| Definition: | abrupt |
| Synonyms: | barefaced, bearish, blunt, blustering, breviloquent, brief, brusque, candid, crusty, curt, direct, downright, forthright, frank, gruff, hearty, honest, laconic, no-nonsense, open, outspoken, plain-spoken, rough, rude, short, short-spoken, sincere, snippety, snippy, straightforward, tactless, tart, terse, unceremonious |
| Main Entry: | brusque |
| Part of Speech: | adjective |
| Definition: | curt, surly |
| Synonyms: | abrupt, bluff, blunt, brief, crusty, discourteous, gruff, hasty, impolite, sharp, short, snappy, snippy, tart, terse, unmannerly |
| Antonyms: | courteous, kind, polite, tactful |
| Main Entry: | caustic |
| Part of Speech: | adjective |
| Definition: | burning, corrosive |
| Synonyms: | abrasive, acerbic, acid, acrid, alkaline, astringent, biting, corroding, erosive, keen, mordant, pungent, tart |
| Antonyms: | calm, mild, soothing |