vitriolic
1. [ adjective ] harsh or corrosive in tone
Synonyms: bitter blistering acid acrid venomous acerbic sulfurous sulphurous caustic virulent acerb
Examples:

"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" "a sulfurous denunciation"

Related terms: unpleasant
2. [ adjective ] (chemistry) of a substance, especially a strong acid; capable of destroying or eating away by chemical action
Synonyms: corrosive erosive caustic
Related terms: destructive
Similar spelling:   vitriol