Open English Wordnet
Nouns
Adjectives
(s)acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolicharsh 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”