| Main Entry: | |
| 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 |
| Main Entry: | abrasive |
| Part of Speech: | adjective |
| Definition: | irritating in manner |
| Synonyms: | annoying, biting, caustic, cutting, galling, hard to take, hateful, hurtful, nasty, rough, rubbing the wrong way, sharp, spiky, unpleasant |
| Antonyms: | likeable, pleasant, pleasing |
| 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 in words or behavior |
| Synonyms: | acerbic, biting, caustic, cutting, dry, harsh, hateful, hurtful, mordant, nasty, offensive, sarcastic, sharp, stinging, trenchant, vitriolic |
| Antonyms: | kind, nice |
| Main Entry: | acrid |
| Part of Speech: | adjective |
| Definition: | bitter, sour to taste |
| Synonyms: | acid, amaroidal, astringent, biting, burning, caustic, harsh, irritating, pungent, sharp, stinging |
| Antonyms: | delicious, savory, sweet |
| Main Entry: | acrid |
| Part of Speech: | adjective |
| Definition: | nasty in behavior or words |
| Synonyms: | acrimonious, austere, biting, bitter, caustic, cutting, harsh, mordant, sarcastic, sharp, trenchant, vitriolic |
| Antonyms: | complimentary, kind, nice |
| 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: | alkaline |
| Part of Speech: | adjective |
| Definition: | being basic, not acid (chemically) |
| Synonyms: | acrid, alkalescent, alkali, antacid, bitter, caustic, neutralizing, salty, soluble |
| Main Entry: | biting |
| Part of Speech: | adjective |
| Definition: | sarcastic |
| Synonyms: | acerbic, acrimonious, bitter, caustic, cutting, incisive, mordant, scathing, severe, sharp, stinging, trenchant, withering |
| Antonyms: | kind, nice, sweet |