1. the quality or state of being deceptive; the tendency to mislead or deceive

Examples

• The deceptiveness of the advertisement was exposed when consumers discovered the product didn't work as promised.
• She was troubled by the deceptiveness in his words, even though he smiled warmly.
• The magician's deceptiveness delighted the audience, who knew they were being fooled.
• The report criticized the deceptiveness of the company's financial statements.
• Optical illusions rely on the deceptiveness of human perception.
• His deceptiveness made it hard for anyone to trust him again.