Deceitful :: Deceitful (a.) Full of, or characterized by, deceit; serving to mislead or insnare; trickish; fraudulent; cheating; insincere..
Deceitfulness :: Deceitfulness (n.) The disposition to deceive; as, a man's deceitfulness may be habitual..
Deceitfulness :: Deceitfulness (n.) The quality of being deceitful; as, the deceitfulness of a man's practices..