[ im-pos-cher ]
/ ɪmˈpɒs tʃər /


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

Origin of imposture

1530–40; < Late Latin impostūra, equivalent to Latin impost(us) past participle of impōnere (see impostor, impone) + -ūra -ure

Related forms

im·pos·trous [im-pos-truhs] /ɪmˈpɒs trəs/, im·pos·tur·ous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for imposturous


/ (ɪmˈpɒstʃə) /


the act or an instance of deceiving others, esp by assuming a false identity

Derived Forms

impostrous (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