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
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.
In this painful experience, one is exposed (the betrayal that is blushing) and longs to hide oneself. — Eugenie Brinkema, ARTnews.com, 17 Oct. 2026 Someone to blame Burns knows the cost of Salem’s betrayals about as well as anyone. — Jennifer Byrne, Popular Science, 15 Oct. 2026 Presidential clemency cannot rewrite history or erase the betrayal of public trust. — Chicago Tribune, 14 Oct. 2026 While many of the more contentious and controversial aspects of his life are presented in one-sided fashion, friend and former manager Rory Holloway’s still-raw sense of betrayal at Tyson firing his entire team is evoked with vivid irritation. — Daniel Fienberg, HollywoodReporter, 13 Oct. 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

Browse Nearby Words

Cite this Entry

“Betrayal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/betrayal. Accessed 20 Oct. 2026.

Love words? Need even more definitions?

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