1
as in informer
a person who provides information about another's wrongdoing
the arrested drug dealer vowed that he would get his revenge on his betrayer
Synonyms & Similar Words
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2
as in traitor
one who betrays a trust or an allegiance
the betrayer of Anne Frank's family in Amsterdam has never been identified for certain
Synonyms & Similar Words
Example Sentences
Recent Examples of Synonyms for betrayer
Noun
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The court can instruct the jury to view with caution the testimony of, say, an informer or a drug addict.—
Daniel Arkin,
NBC news,
10 June 2025 -
Singh says that the Kashmir policy of India's Hindu nationalist government has alienated residents of Kashmir, and cost the Indian army its vital network of local informers.—
Omkar Khandekar,
NPR,
23 Apr. 2025
Noun
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Eric Coomer, who was the security and product strategy director at the voting equipment company, sued the MyPillow founder and conspiracy theorist for calling him a traitor and accusing him of stealing the 2020 election.—
Jade Walker,
CNN Money,
17 June 2025
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The faithfuls must determine who the traitors are and banish them from the game in order to win the grand prize.—
Melina Khan,
USA Today,
13 June 2025
Noun
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But, during the trials, you were named as someone who interrogated Aquash for being an informant.—
Nick Estes,
New Yorker,
26 June 2025
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Privacy advocates have expressed concern that the program, and Ring’s accompanying Neighbors app, have heightened the risk of racial profiling and turned residents into informants, with few guardrails around how law enforcement can use the material.—
Annie Palmer,
CNBC,
25 June 2025
Noun
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Talent opting out of top jobs is a canary in the coal mine.—
Solange Charas,
Forbes.com,
27 May 2025
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Valor Christian’s former head football coach is the canary in the coal mine for Colorado high school sports.—
The Denver Post Editorial Board,
Denver Post,
15 May 2025
Noun
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Humans hate navigating a rat maze and having robots talk at them.—
Expert Panel®,
Forbes.com,
30 June 2025
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Also known as the Andalusian terrier, these dogs were bred to help protect vineyard wine cellars from potential rat infestations.—
Liz O'Connell,
MSNBC Newsweek,
28 June 2025
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Cite this Entry
“Betrayer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/betrayer. Accessed 7 Jul. 2025.
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