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  1. the action or practice of imposing fraudulently upon others.
  2. deception using an assumed character, identity, or name, as by an impostor.
  3. an instance or piece of fraudulent imposition.
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Origin of imposture

1530–40; < Late Latin impostūra, equivalent to Latin impost(us) past participle of impōnere (see impostor, impone) + -ūra -ure
Related formsim·pos·trous [im-pos-truhs] /ɪmˈpɒs trəs/, im·pos·tur·ous, adjective

Synonyms for imposture

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for imposture

stratagem, cheat, sleight, artifice, hoax, pretension, imitation, fake, wile, sell, impersonation, deception, imposition, ploy, forgery, quackery, counterfeit, illusion, sham, maneuver

Examples from the Web for imposture

Contemporary Examples of imposture

Historical Examples of imposture

British Dictionary definitions for imposture


  1. the act or an instance of deceiving others, esp by assuming a false identity
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Derived Formsimpostrous (ɪmˈpɒstrəs), impostorous (ɪmˈpɒstərəs) or imposturous, adjective

Word Origin for imposture

C16: from French, from Late Latin impostūra, from Latin impōnere; see impose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for imposture


"act of willfully deceiving others," 1530s, from Middle French imposture, from Late Latin impostura, from impostus (see impost).

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Online Etymology Dictionary, © 2010 Douglas Harper