1. the quality of being biting, caustic, or sharply critical in speech or manner
Usage: formal; often used to describe wit or humor that is cutting or sarcastic

Examples

• The critic's mordacity was evident in every review she wrote.
• His mordacity made him a feared but respected debater.
• She delivered her complaints with such mordacity that no one dared respond.
• The comedian's mordacity appealed to audiences who enjoyed sharp, biting humor.
• His mordacity often masked a deeper insecurity beneath his sarcastic exterior.