" two-facedness "

1: as in deception, deceit;

•  Synonyms : 

•  deceit,

•  deceitfulness,

•  deception,

•  deceptiveness,

•  dishonesty,

•  double-dealing,

•  falsity,

•  perfidy,

•  cant,

•  dissembling,

•  dissimulation,

•  hypocrisy,

•  insincerity,

•  piousness,

•  affectation,

•  affectedness,

•  pretense,

•  pretension,

•  pretentiousness,

•  sanctimoniousness,

•  self-righteousness,

•  self-satisfaction,

•  duplicity,

•  fakery,

•  falseness,

•  fraudulentness,

•  shamming,

•  artificiality,

•  glibness,

•  oiliness,

•  smoothness,

•  unctuousness

•  Antonyms : 

•  genuineness,

•  sincereness,

•  sincerity,

•  candor,

•  directness,

•  forthrightness,

•  frankness,

•  honesty,

•  openheartedness,

•  openness,

•  probity,

•  straightforwardness,

•  truthfulness,

•  artlessness,

•  guilelessness,

•  naturalness,

•  unaffectedness

1: not being or expressing what one appears to be or express;

  * e.g., " ... a two-faced friend who was just using me to advance her career "

•  Synonyms : 

•  artificial,

•  backhanded,

•  counterfeit,

•  double,

•  double-dealing,

•  double-faced,

•  fake,

•  feigned,

•  hypocritical,

•  insincere,

•  Janus-faced,

•  jive,

•  left-handed,

•  lip,

•  mealy,

•  mealymouthed,

•  Pecksniffian,

•  phony,

•  phony-baloney,

•  pretended,

•  unctuous

•  Antonyms : 

•  artless,

•  candid,

•  genuine,

•  heartfelt,

•  honest,

•  sincere,

•  undesigning,

•  unfeigned