two-faced

adj.

[1]	double-dealing , ambidextrous , deceitful , hypocritical , duplicitous , double-dealing , duplicitous , dissembling , deceitful , Janus-faced , double-faced , Janus-faced , treacherous , double-tongued , dishonest , untrustworthy , insincere , scheming , designing , crafty , Machiavellian , sly , perfidious , lying , mendacious
[2]	Janus-faced