See acerbic in Webster's New World Roget's A-Z Thesaurus II
adjective
Having a noticeably sharp pungent taste or smell:
acrid, bitter, harsh, sour. See tasteHaving a taste characteristic of that produced by acids:
acerb, acetous, acid, acidulous, dry, sour, tangy, tart1. See tasteSo sharp as to cause mental pain:
acid, acidic, acrid, astringent, biting, caustic, corrosive, cutting, mordacious, mordant, pungent, scathing, sharp, slashing, stinging, trenchant, truculent, vitriolic. See attack, respect
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