Acerbic \A*cerb"ic\, a. Sour or severe. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

73 Moby Thesaurus words for "acerbic": acerb, acerbate, acescent, acetose, acid, acidic, acidulent, acidulous, acrid, acrimonious, amaroidal, asperous, astringent, biting, bitter, bitter as gall, burning, caustic, choleric, coarse, corroding, corrosive, crab, crabbed, cutting, dry, embittered, escharotic, green, hard, harsh, incisive, irritating, keen, mordacious, mordant, nose-tickling, penetrating, pickled, piercing, piquant, poignant, pungent, rancorous, rankled, resentful, resenting, rough, scathing, scorching, sec, severe, sharp, sore, sour, sour as vinegar, soured, sourish, splenetic, stabbing, stewing, stinging, tart, tartish, trenchant, unripe, unsweet, unsweetened, vinegarish, vinegary, virulent, vitriolic, withering

Source: Moby Thesaurus II by Grady Ward, 1.0
 

acerbic adj
1: sour or bitter in taste [syn: acerb, astringent, sharp]
2: harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation" [syn: acerb, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, venomous, virulent, vitriolic]

Source: WordNet (r) 2.0
 

Acerbic \A*cerb"ic\, a. Sour or severe.

Source: Webster's Revised Unabridged Dictionary (1913)