3. (adj)caustic, corrosive, erosive, vitriolic, mordant of a substance, especially a strong acid; capable of destroying or eating away by chemical action Synonyms: acrid, mordant, blistering, sulphurous, sulfurous, grim, corrosive, acid, erosive, bitter, virulent, caustic, acerbic, vitriolic, black, acerb Antonyms: pleasant, constructive
Synonyms, Thesaurus & Antonyms of 'caustic'
English Synonyms and Antonyms
1. caustic Acid, sour, and bitter agree in being contrasted with sweet, but the two former are sharply distinguished from the latter. Acid or sour is the taste of vinegar or lemon-juice; bitter th Synonyms: bitter, acerb, acidulous, caustic, pungent, stinging, acetous, acrid, cutting, savage, tart, acid, acrimonious, harsh, sharp, vinegarish, acidulated, biting, irate, sour, virulent Antonyms: dulcet, honeyed, luscious, nectared, saccharine, sweet
Synonyms for caustic 
