impostor

noun

im-ˈpä-stər How to pronounce impostor (audio)
variants or imposter
Definition of impostornext
as in fake
one who makes false claims of identity or expertise the man who claimed to be a prince turned out to be an impostor

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of impostor That's the premise of te black comedy Phony, which stars Sam Nivola as teenager Sonny Cooke, who wakes up in the hospital after a car accident, convinced that his mother (Connie Britton) has been replaced by an impostor. — K. Thor Jensen, PC Magazine, 16 Oct. 2026 Once again, the relationship turns out to be meaningful for both parties, despite our Daniela being an imposter to Gabriel’s world. — Scott Tobias, Vulture, 16 Oct. 2026 The idea of being an imposter bled into other storylines swirling about in my head. — Literary Hub, 16 Oct. 2026 When a connection shows that the keys match, the visiting party knows it’s connected to the authentic site rather than an impostor. — Dan Goodin, ArsTechnica, 6 Oct. 2026 See All Example Sentences for impostor
Recent Examples of Synonyms for impostor
  1. fake
  2. fraud
  3. pretender
  4. sham
  5. deceiver
  6. faker
  7. charlatan
  8. mountebank
Noun
  • Brunson beats defenders with skill and not size, relying on footwork, fakes and spins that create angles to get his shot off against taller defenders.
    — ABC News, ABC News, 16 Oct. 2026
  • Making the fakes harder to produce is the answer to that problem.
    — Stephen Messer, Fortune, 16 Oct. 2026
Definition of fake
Noun
  • Walter also is a defendant in multiple civil lawsuits filed by investors alleging fraud and breach of contract.
    — Bill Shaikin, Los Angeles Times, 24 Oct. 2026
  • Your phone could become part of a botnet The advertising fraud is only part of the story.
    — Kurt Knutsson, FOXNews.com, 23 Oct. 2026
Definition of fraud
Noun
  • The transfer portal can transform a contender into a pretender in a single offseason.
    — Mike Bianchi, The Orlando Sentinel, 6 Aug. 2026
  • The schedule is forgivable, even by ACC standards, but a rematch on the road against Notre Dame will separate the Canes as contenders or pretenders.
    — Austin Perry OutKick, FOXNews.com, 28 July 2026
Definition of pretender
Noun
  • These sheets and shams are made from Oexo-Tex Certified Organic microfiber material that’s light but surprisingly resilient.
    — Stephanie Osmanski, Better Homes & Gardens, 7 Oct. 2026
  • Plus, the set comes with two shams to complete your sanctuary.
    — Shea Simmons, Southern Living, 18 Sep. 2026
Definition of sham
Noun
  • The actors are perfectly cast, starting with Marmaï’s likable Antoine, the only player here not being the deceiver.
    — Pete Hammond, Deadline, 12 May 2026
  • The film tells the true and twisted tale of a deceiver of land and folk, who, defying her birth as a woman, comported herself as a man and committed many a wicked deed.
    — Leo Barraclough, Variety, 20 Jan. 2026
Definition of deceiver
Noun
  • To tell the truly venomous from the fakers, there are a couple details to help distinguish the two.
    — Kirsten Fiscus, Nashville Tennessean, 17 Sep. 2025
Definition of faker
Noun
  • Despite the claims of any number of charlatans who prey on the American brand of cuddly benighted ignorance, the universe will not manifest an alternate reality for anyone who simply wishes for it with sufficient longing.
    — Anthony Crupi, Sportico.com, 2 Oct. 2026
  • You and many others have been taken in by a lowlife charlatan.
    — Voice of the People, New York Daily News, 15 Sep. 2026
Definition of charlatan
Noun
  • Good afternoon and welcome to Con Con, the convention for swindlers, mountebanks, and the people who love them.
    — Henry Alford, New Yorker, 1 Dec. 2025
  • Godard might have come across as a species of poseur – a pretentious, quote-spouting mountebank – but his way of seeing was genuinely new.
    — Peter Rainer, Christian Science Monitor, 13 Nov. 2025
Definition of mountebank

Browse Nearby Words

impost
impostor
impostors
See all Nearby Words

Cite this Entry

“Impostor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impostor. Accessed 30 Oct. 2026.

Copy Citation
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of reticent

See Definitions and Examples »

Popular in Grammar & Usage

See More

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Pwn, Skibidi, Girlboss and Other Words Added to the 2026 Scrabble Dictionary

The Words of the Week - Oct. 30

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night
See All