1. (adj) acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic
harsh or corrosive in tone
"an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
2. (adj) caustic, corrosive, erosive, vitriolic, mordant
of a substance, especially a strong acid; capable of destroying or eating away by chemical action
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Definition of 'vitriolic' 
