Definition of "mendacity" in English

noun

1. (uncountable) The fact or condition of being untruthful; dishonesty.

   • Big Daddy: […] Think of all the lies I got to put up with!—Pretenses! Ain't that mendacity? Having to pretend stuff you don't think or feel or have any idea of?

2. (countable) A deceit, falsehood, or lie.