Rabelaisian, acerb, acerbate, acerbic, acid, acidic, acidulent, acidulous, acrid, acrimonious, actual cautery, acute, amaroidal, angry, antagonistic, antipathetic, arc, asperous, astringent, belligerent, biting, bitter, bitter as gall, bow, brand, brand iron, branding iron, brisk, burning, catacaustic, catenary, cauter, cauterant, cauterizer, cautery, choleric, circle, clashing, coarse, colliding, conchoid, conflicting, corroding, corrosive, crisp, critical, crook, curl, curve, cutting, cynical, despiteful, destructive, diacaustic, discontented, double-edged, dry, edged, electrocautery, ellipse, embittered, escharotic, feeling evil, festoon, fierce, full of hate, hard, harsh, hateful, hook, hostile, hot iron, hyperbola, incisive, ironic, irritating, keen, lituus, lunar caustic, malevolent, malicious, malignant, mordacious, mordant, moxa, nose-tickling, out of humor, out of sorts, out of temper, parabola, penetrating, piercing, piquant, pithy, poignant, potential cautery, pungent, quarrelsome, radium, rancorous, rankled, repugnant, resentful, resenting, rigorous, rough, salty, sarcastic, sardonic, satiric, scathing, scorching, set against, severe, sharp, sinus, sore, sour, spiteful, splenetic, stabbing, stewing, stinging, strident, stringent, succinct, tart, terse, tracery, trenchant, vehement, venomous, violent, virulent, vitriolic, withering