mendacity
Definitions
The tendency to be untruthful; habitual lying.
An instance of lying; a falsehood.
Examples
The politician's reputation was ruined by his habitual mendacity regarding the campaign funds.
I was shocked by the sheer mendacity of his excuse for missing the important meeting.
The novel explores the theme of mendacity within a family that hides dark secrets behind a facade of perfection.
Synonyms
dishonesty deceit falsehood untruthfulness lying duplicity perjury
Antonyms
honesty truthfulness veracity sincerity candor frankness integrity