inauthentic [ˌɪnɔˈθɛntɪk]

例句:

• Don't allow peer pressure to force you into an inauthentic role.
  不要使压力逼迫你扮演不真实的角色.
  
• It is however inauthentic because of its evanescence.
  来自SA
• That would be inauthentic and out of character.
  来自THETIMES
• Clean it up too much and it began to seem inauthentic.
  来自NEWYORKER