1. extremely harsh, bitter, or caustic in language or tone

Examples

• The critic wrote a vitriolic review of the new restaurant.
• Her vitriolic comments about her former employer shocked everyone.
• The debate turned ugly with vitriolic attacks from both sides.
• He responded to the criticism with a vitriolic letter to the editor.
• The politician’s vitriolic speech alienated many voters.
• She regretted her vitriolic response to his innocent question.