1. the state of being false or untrue

- argument could not determine its truth or falsity

Similar word(s): falseness

Definition categories: state, irreality, unreality

2. a false statement

Similar word(s): falsehood, untruth

Definition categories: communication, statement

Sentences with falsity as a noun:

- The belief that the world is flat is a falsity.

- The falsity of that statement is easily proven.