deceitful
Definitions
Guilty of or involving deceit; misleading others through false appearances or statements.
Intended to deceive or trick; dishonest or fraudulent in nature.
Examples
The deceitful salesman promised the car was in perfect condition despite knowing about the faulty engine.
She felt betrayed after discovering her partner's deceitful behavior regarding his secret bank account.
It is difficult to trust someone who has a reputation for being so consistently deceitful.
Synonyms
dishonest deceptive fraudulent insincere duplicitous treacherous underhanded