DECEITFUL

ambidextrous, deceitful, double-dealing, duplicitous, Janus-faced, two-faced, double-faced, double-tongued

(adjective) 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”- Israel Zangwill; “a double-dealing double agent”; “a double-faced infernal traitor and schemer”- W.M.Thackeray

deceitful, fallacious, fraudulent

(adjective) intended to deceive; “deceitful advertising”; “fallacious testimony”; “smooth, shining, and deceitful as thin ice” - S.T.Coleridge; “a fraudulent scheme to escape paying taxes”

Source: WordNet® 3.1

Etymology

Adjective

deceitful (comparative more deceitful, superlative most deceitful)

Deliberately misleading or cheating.

Deceptive, two-faced

Synonyms

• See also deceptive

Source: Wiktionary

De*ceit"ful, a.

Definition: Full of, or characterized by, deceit; serving to mislead or insnare; trickish; fraudulent; cheating; insincere. Harboring foul deceitful thoughts. Shak.

Source: Webster’s Unabridged Dictionary 1913 Edition