sardonic, caustic, waspish, cantankerous, witty, wry, irascible, droll, curmudgeonly, sarcastic, genial, snarky, erudite, vitriolic, jocular, vituperative, snide, barbed, splenetic, irreverent, amiable, brusque, deadpan, trenchant, unsparing, pugnacious, mordant, affable, bitchy, scabrous, plainspoken, impassioned, satiric, outspoken, waggish, satirical, gruff, intemperate, quippy, pompous, bombastic, ribald, flamboyant, pithy, abrasive, snappish, bilious, opinionated, eloquent, avuncular, eccentric, sneery, humorless, perceptive, acidulous, smart aleck, loquacious, brusk, prickly, urbane, scornful, ineloquent, dyspeptic, sly, glib, strident, tactless, blunt, unsentimental, effusive, feisty, supercilious, voluble, brash, insouciant, affectionate, humorous, hilarious, combative, puckish, uproarious, snippy, laconic, sassy, catty, florid, spiteful, scathing, ingratiating, shavian, polemical, misanthropic, rueful, unquotable, garrulous, smarmy, rebarbative, lacerating, unapologetic, unabashed, condescending, politically incorrect, incisive, dismissive, disparaging, flippant, censorious, forthright, insightful, laudatory

acerb

acid, acrid, astringent, bitter, blistering, sharp, sour, sulfurous, sulphurous, unpleasant, venomous, virulent