falseness
Definitions
The quality or state of being untrue, incorrect, or contrary to fact.
The quality of being deceitful, insincere, or treacherous.
Examples
The falseness of his claims became apparent once the evidence was presented to the jury.
She could no longer ignore the falseness in his smile and decided to end their friendship.
Synonyms
deceit duplicity dishonesty insincerity mendacity perfidy treachery