Coarse, Colliding, Conflicting, Corroding, Corrosive, Crisp, Critical, Crook, Curl, Curve, Cutting, Cynical, Destructive, Discontented, Dry, Edged, Ellipse, Embittered, Festoon, Fierce, Hard, Harsh, Hateful, Hook, Hostile, Hyperbola, Incisive, Ironic, Irritating, Keen, Malevolent, Malicious, Malignant, Mordant, Parabola, Penetrating, Piercing, Piquant, Pithy, Poignant, Pungent, Quarrelsome, Radium, Rancorous, Rankled, Repugnant, Resentful, Resenting, Rigorous, Rough, Salty, Sarcastic, Sardonic, Satiric, Scathing, Scorching, Severe, Sharp, Sinus, Sore, Sour, Spiteful, Splenetic, Stabbing, Stewing, Stinging, Strident, Stringent, Succinct, Tart, Terse, Tracery, Trenchant, Vehement, Venomous, Violent, Virulent, Vitriolic, Withering, Acerbic, Acid, Acidic, Acrid, Acrimonious, Acute, Angry, Antagonistic, Antipathetic, Arc, Astringent, Belligerent, Biting, Bitter, Bow, Brand, Brisk, Burning, Circle, Clashing