impostor Meaning, Definition & Usage

  1. noun a person who makes deceitful pretenses
    fraud; shammer; imposter; pseudo; faker; pseud; role player; fake; pretender; sham.

WordNet

Im*pos"tor noun
Etymology
L. impostor a deceiver, fr. imponere to impose upon, deceive. See Impone.
Definitions
  1. One who imposes upon others; a person who assumes a character or title not his own, for the purpose of deception; a pretender. "The fraudulent impostor foul." Milton. Syn. -- Deceiver; cheat; rogue. See Deceiver.

Webster 1913