mordant

adj

1. caustic, acrimonious, bitter, acrid, acidulous, acid, mordacious, pungent; trenchant, cutting, incisive, slashing, scathing; keen, pointed, sharp, sharp-tongued; penetrating, piercing, stinging, pricking, nipping, biting; astringent, severe, acerb, acerbic, stern, austere, harsh, stringent; spiteful, virulent, malicious, malificent, venomous, vicious, malevolent, malignant; invidious, hateful.

2. sarcastic, satirical, ironic, ironical, cynical; double-edged, edged; contemptuous, contumelious, taunting, teasing; scornful, mocking, derisive, derisory, disdainful, sardonic.

3. insulting, excoriating, denouncing, berating, lashing; abusive, scurrilous, offensive, vituperative; corrosive, corroding, erosive, withering; cruel, mean, brutal; unkind, uncharitable, unbenevolent, uncordial, unamiable, unfriendly.

4. peevish, petulant, pettish, crabbed, testy, touchy, waspish, irascible, edgy; ill-tempered, ill-humored, ill-natured, short-tempered; hostile, resentful, indignant, piqued, angry; morose, surly, sour, moody.

5. rude, churlish, boorish, bearish, graceless, unceremonious, rough; unmannerly, uncivil, ill-bred, ungracious, impolite, discourteous; abrupt, brusque, blunt, curt, snappish, short, gruff, crusty.