from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One who engages in deception under an assumed name or identity.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Someone who attempts to deceive by using an assumed name or identity.

from the GNU version of the Collaborative International Dictionary of English

  • n. One who imposes upon others; a person who assumes a character or title not his own, for the purpose of deception; a pretender.

from The Century Dictionary and Cyclopedia

  • n. One who imposes on others; a person who practises deception, usually under a false guise or an assumed character.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a person who makes deceitful pretenses


French imposteur, from Latin impostor, one who assigns a name, from impostus, variant of impositus, past participle of impōnere, to place upon; see impose.
(American Heritage® Dictionary of the English Language, Fourth Edition)



Log in or sign up to get involved in the conversation. It's quick and easy.

  • Apparently the root verb is "impose". Who knew?

    March 29, 2010