Deliberately misleading or cheating. / Deceptive, two-faced.

The state or quality of being deceitful.

plural of deceitfulness

An act or practice intended to deceive; a trick. / An act of deceiving someone. / (uncountable) The state of being deceitful or deceptive.

plural of deceit

(obsolete) deceitful

Synonym of self-deception

in a deceitful manner / with the intention to deceive

Archaic form of deceitful.