biting or caustic in thought, manner, or style; sharply or bitterly harsh sharply or harshly sarcastic biting or caustic in thought, manner, or style sharply or bitterly harsh having or showing a sharp or critical quality bitterly harsh in thought, manner or style. especially of humour) having or showing a sharp or critical quality; biting. \\"a mordant sense of humour\\" ***synonyms: caustic, trenchant*, biting, cutting, acerbic*, sardonic*, sarcastic*, scathing, acid, sharp, keen, tart, pungent*, stinging*, astringent*, incisive*, devastating, piercing*, rapier-like, razor-edged*; critical, bitter, polemic*, virulent*, vitriolic*, venomous*, waspish, corrosive; rare acidulous, mordacious. à¦à§à¦¬à¦¾à¦²à¦¾à¦à¦¯à¦¼ irritating, mordant, arrowy, smart à¦¤à§à¦¬à§à¦° intense, severe, acute, exquisite, sharp, mordant à¦¤à¦¿à¦à§à¦¤ bitter*, sardonic, nippy, mordant, arrowy à¦¤à¦¿à¦à§à¦ violent, mordant, hot, torrid, keen, sharp à¦à¦°à§à¦à¦­à§à¦¦à§ harrowing, poignant*, trenchant*, distressful*, bitter, mordant à¦à§à¦·à¦¯à¦¼à¦à¦° hectic*, cankerous*, corrosive, corrodent, erosive, mordant à¦ªà¦°à¦¿à¦·à§à¦à¦¾à¦°à¦ detergent, cleansing, abstergent, mordant. biting and caustic in thought, manner, or style While Phil frequently made mordant remarks about company policy overall, he always was considerably gentler in discussing any person in particular. Definition of Mordant having a scathing wit Examples of Mordant in a sentence The mordant mother often used harsh words that made her son cry. When the mordant president entered the boardroom, all of his vice-presidents readied for his sarcastic attacks. The mordant news anchor lost his job after he made racist jokes on television. Before I face my mordant mother-in-law at dinner, I must brace myself for her abrasive comments about my cooking. The mordant comedian offended many people with his scathing taunts.