double-tongued

adj : 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 [syn: {ambidextrous}, {deceitful}, {double-dealing},

{duplicitous}, {Janus-faced}, {two-faced}, {double-faced}]