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Synonyms

impostor

American  
[im-pos-ter] / ɪmˈpɒs tər /
Or imposter

noun

  • impostors
    plural
  1. a person who practices deception under an assumed character, identity, or name.


impostor British  
/ ɪmˈpɒstə /

noun

  1. a person who deceives others, esp by assuming a false identity; charlatan

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of impostor

1580–90; < Late Latin, equivalent to Latin impos ( i )-, variant stem of impōnere to deceive, place on ( see impone) + -tor -tor

Vocabulary lists containing impostor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Her crippling impostor syndrome was a feature, not a bug — we were stuck there with her for at least two seasons.

From Los Angeles Times Aug. 10, 2026

People reported losing $3.5 billion to impostor scams in 2025, nearly triple 2020’s level, the Federal Trade Commission said in a June report.

From The Wall Street Journal Aug. 9, 2026

In Orange County, Rivera reported her impostor to the state bar, which is investigating.

From Los Angeles Times Jul. 31, 2026

He said the "lone impostor" explanation did not add up.

From BBC Jul. 11, 2026

Fiona told me to wear them to the car wash, but holding the gold shorts and Liberty singlet now makes me feel like an impostor.

From "The Running Dream" by Wendelin Van Draanen

The state bar is able to pursue disciplinary action only against California-licensed attorneys, but has no authority against impostors.

From Los Angeles Times Jul. 31, 2026

“Additionally, many AI impostors will be revealed this year as well; the 2026 equivalents to Pets.com will not make it through to 2027.”

From Barron's Jan. 13, 2026

Right now, dating apps are falling out of favor with those treasured demographics, not least thanks to the prevalence of catfishing impostors and nonstop deluges of fake dating options.

From Slate May 17, 2024

One of fiction’s most famous impostors returns on Thursday with the debut of Netflix’s “Ripley,” the latest adaptation of a character invented in the 1950s by the author Patricia Highsmith.

From New York Times Apr. 3, 2024

Maybe they’re not your parents at all, but impostors.

From "Challenger Deep" by Neal Shusterman

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