1. acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic

harsh or corrosive in tone

Example Sentences:
'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'

Synonyms

• acerb
• acerbic
• acid
• acrid
• bitter
• blistering
• caustic
• sulfurous
• sulphurous
• virulent

2. caustic, corrosive, erosive, mordant, vitriolic

of a substance, especially a strong acid; capable of destroying or eating away by chemical action

Synonyms

• caustic
• corrosive
• erosive
• mordant