plural betrayals
Synonyms of betrayal
1
: the act of betraying someone or something or the fact of being betrayed : violation of a person's trust or confidence, of a moral standard, etc.
the betrayal of a friend
a betrayal of trust
a betrayal of one's principles
A man who built his entire administration upon demanding unctuous loyalty from his allies now finds himself wounded by their shabby betrayal.Jack Hitt
The double life of an informant is a peculiar one, filled at the same time with tedium and betrayal.Karen Richardson
Even Jesus recognized that there was something paradoxical about his betrayal by Judas Iscariot—in three of the four canonical Gospels, with a kiss.David Gates
2
: revelation of something hidden or secret
a betrayal of one's true feelings
There was never doubt, never a betrayal of indecision.Jack London
… she had shrunk with irresistible dread from every course that could tend towards a betrayal of her miserable secret.George Eliot

Examples of betrayal in a Sentence

the terrible betrayal of having her best friend reveal her confidences to others
Recent Examples on the Web
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Max’s arrival is particularly propitious because Max is still sore from Nathan’s betrayal, so if Max can get on Joe’s good side by respecting his authority, Joe can reward him with the lead position. Rafaela Bassili, Vulture, 18 Aug. 2026 An act of betrayal between a close group of friends has terrible consequences in Benjamín Naishtat’s atmospheric period-noir thriller. Alex Ritman, Variety, 17 Aug. 2026 This week on our series Hidden Histories, the rise and fall of the queen of plastics—and one of corporate America's most dramatic betrayals. Ramtin Arablouei, NPR, 13 Aug. 2026 Lifelong Michigan Democrats are threatening a massive party betrayal. Staff, FOXNews.com, 13 Aug. 2026 See All Example Sentences for betrayal

Word History

First Known Use

1788, in the meaning defined at sense 1

Time Traveler
The first known use of betrayal was in 1788

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Cite this Entry

“Betrayal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/betrayal. Accessed 21 Aug. 2026.

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