1. deliberately deceptive or dishonest; characterized by double-dealing

Examples

• The duplicitous politician promised different things to different groups.
• She discovered her business partner’s duplicitous behavior when she found the secret contracts.
• His duplicitous nature made it impossible to trust anything he said.
• The spy’s duplicitous actions eventually led to his capture.
• The company’s duplicitous marketing practices resulted in a lawsuit.
• Her duplicitous smile hid her true intentions.