mendacity

The fact or condition of being untruthful; dishonesty.uncountable

• 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?

A deceit, falsehood, or lie.countable

• The scandalous bronze-lacker age, of hungry animalisms, spiritual impotencies and mendacities, will have to run its course, till the Pit swallow it.
• He would have you believe that every error we make is deliberate, that journalists have somehow ginned up a unified conspiracy of lies and mendacities against him.