falsity

noun
UK /ˈfɔːlsəti/
US /ˈfɔːlsəti/

Falsity is when something is not true.

The teacher showed the falsity of the rumor.


OTHER MEANINGS

2. The state of being false or not real.

The falsity of the claim was soon discovered.

3. A false statement or lie.

He was caught telling a falsity about his grades.

4. Lack of truthfulness or honesty.

The falsity in his voice made her doubt him.