as in betrayal
the act or fact of violating the trust or confidence of another
was furious that she revealed his secret and never forgave her for the treachery
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Recent Examples of treachery
Not having to bear that burden, I was transported by Bentley and his co-writer Greg Kwedar to a Pacific Northwest of quiet beauty and matter-of-fact treachery.
—
Joe Reid, Vulture, 10 Mar. 2026
After Thomas Hickey was hanged that year for mutiny, sedition and treachery, Washington warned that his fate should serve as a caution to all soldiers.
—Kim Hjelmgaard, USA Today, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Mercury News, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Chicago Tribune, 24 Feb. 2026
See All Example Sentences for treachery
Joe Reid, Vulture, 10 Mar. 2026
After Thomas Hickey was hanged that year for mutiny, sedition and treachery, Washington warned that his fate should serve as a caution to all soldiers.
—Kim Hjelmgaard, USA Today, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Mercury News, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Chicago Tribune, 24 Feb. 2026
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
Noun
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The friendship betrayal/love triangle of Ciara Miller, West Wilson, and Amanda Batula is still being dissected through thousands of TikTok and Instagram comments.—
Bethy Squires,
Vulture,
30 Apr. 2026
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The betrayal of Zambada sparked a vicious battle for control of the Sinaloa cartel that has resulted in thousands of deaths.—
Kate Linthicum,
Los Angeles Times,
30 Apr. 2026
Noun
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Under existing law, lawmakers can lose their pensions if convicted of a federal crime that relates to public corruption, espionage, treason or several other national security offenses.—
Anna Liss-Roy The Washington Post,
Arkansas Online,
27 Apr. 2026
-
He is later suspected of treason when a petition alleges that he had been declared the rightful king by his armorer.—
Gitanjali Roy,
Encyclopedia Britannica,
23 Apr. 2026
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 3 May. 2026.
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