Adjective janus-faced has 3 senses

• janus-faced(s = adj.all) Array - having or concerned with polarities or contrasts; "a Janus-faced view of history"; "a Janus-faced policy"
• janus-faced(s = adj.all) ambidextrous, deceitful, double-dealing, double-faced, double-tongued, duplicitous, two-faced - 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"; "a double-dealing double agent"; "a double-faced infernal traitor and schemer"
• janus-faced(s = adj.all) two-faced - having two faces--one looking to the future and one to the past; "Janus the two-faced god"