Definition of Deceitful

Adjective: deceitful di'seet-ful

Intended to deceive
"deceitful advertising"; "smooth, shining, and deceitful as thin ice";
- fallacious, fraudulent
Marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another
"she was a deceitful scheming little thing";
- ambidextrous, double-dealing, duplicitous, Janus-faced, two-faced, double-faced, double-tongued