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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.

Full-blown impostor syndrome can be crippling, and we miss opportunities to grow if we see every criticism as an affront.

From The Wall Street Journal • Apr. 30, 2026

I stayed silent in that group for days, convinced someone would realize I was an impostor.

From Slate • Apr. 12, 2026

His said his new position gave him a feeling of impostor syndrome.

From Los Angeles Times • Feb. 23, 2026

After a few more words of greeting, the impostor Melania flashed another smile as she exited.

From Los Angeles Times • Jan. 30, 2026

It’s the first sign that maybe he’s not an impostor after all.

From "Challenger Deep" by Neal Shusterman

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