Attic, acerb, acerbate, acerbic, acid, acidic, acidulent, acidulous, acrid, acrimonious, actual cautery, asperous, astringent, biting, bitter, brand, brand iron, branding iron, brilliant, caustic, cauter, cauterant, cauterizer, cautery, clever, corroding, corrosive, cutting, double-edged, driving, droll, edged, effective, electrocautery, escharotic, facetious, fierce, forceful, forcible, funny, gutsy, harsh, hot iron, humorous, humorsome, imperative, impressive, incisive, irritating, jesting, jocose, jocular, joking, joky, joshing, keen-witted, keen, lunar caustic, mordacious, moxa, nervous, nimble-witted, nose-tickling, penetrating, piercing, piquant, poignant, pointed, potential cautery, powerful, punchy, pungent, quick-witted, radium, rapier-like, rigorous, rough, salt, salty, scathing, scintillating, scorching, sensational, severe, sharp, sinewed, sinewy, slashing, smart, sour, sparkling, sprightly, stabbing, stinging, strident, striking, stringent, strong, tart, telling, trenchant, vehement, vigorous, violent, virulent, vital, vitriolic, whimsical, withering, witty