Synonyms to set against

acrid, acerb, acerbate, acerbic, acid, acidic, acidulent, acidulous, acrimonious, acute, amaroidal, antagonistic, antipathetic, asperous, astringent, austere, belligerent, biting, bitter, bitter as gall, caustic, clashing, cloying, coarse, colliding, conflicting, corroding, corrosive, cutting, despiteful, double-edged, edged, escharotic, featheredged, fierce, fine, full of hate, hard, harsh, hateful, hostile, incisive, irritating, keen, keen-edged, knifelike, malevolent, malicious, malignant, mordacious, mordant, nose-tickling, oversweet, penetrating, piercing, piquant, poignant, pungent, quarrelsome, rancorous, razor-edged, repugnant, rigorous, rough, saccharine, scathing, scorching, set, severe, sharp, sore, sour, spiteful, stabbing, stinging, strident, stringent, tart, trenchant, two-edged, vehement, venomous, violent, virulent, vitriolic, withering, aggravate, accelerate, agent provocateur, aggrandize, alienate, amplify, anger, annoy, antagonize, arouse, augment, badger, bait, be at, bedevil, beef up, beset, blow up, bother, bristle, brown off, bug, build up, bullyrag, burn up, chafe, chivy, come between