1. Marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another
   - ambidextrous, deceitful, double-dealing, duplicitous, Janus-faced, double-faced, double-tongued 
2. Having two faces--one looking to the future and one to the past
   "Janus the two-faced god"
   - Janus-faced

See also: dishonest, dishonorable [US], dishonourable [Brit, Cdn], faced

Encyclopedia: Two-faced

• Scombroidea
• sconce
• sconcheon arch
• scone
• scoop
• scoop out
• scoop shot
• scoop shovel
• scoop up
• scooper
• scoopful
• scoot
• scooter
• scop
• scopal
• scope
• Scopes
• Scopes trial
• Scophthalmus
• Scophthalmus aquosus
• Scophthalmus rhombus
• scopolamine
• Scopolia
• Scopolia carniolica
• scops owl