mendacity

noun
UK /mɛnˈdæsɪti/
US /mɛnˈdæsəti/

The habit of telling lies.

The judge was known for his honesty and had no patience for mendacity.


OTHER MEANINGS

2. A lie or false statement.

The report was full of mendacities that misled the public.

3. The quality of being untruthful in speech or writing.

Her mendacity became clear when the facts were checked.

4. A tendency to deceive others.

The scandal exposed the mendacity of the company's leaders.