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
Sinners is one of the great vampire movies of the modern age, mining the legend of these perpetual outsiders who desperately yearn to belong, but whose silky promises are rooted in treachery.
—
Stephanie Zacharek, Time, 29 Apr. 2025
But amid the bloodbaths and treacheries, Westeros still penciled in time for a little romance — some more compelling than others (Jon and Ygritte > Jon and Daenerys).
—Tyler Aquilina, EW.com, 17 Apr. 2025
In true Christie fashion, the Tressilian reunion inevitably leads to murder, familial treachery, and a labyrinthine hunt for the killer.
—Erik Morse, Vogue, 15 Apr. 2025
Press play below to learn more about Wells’ treachery, and to get a sneak peek at the fugitive interacting with her latest target.
—Matt Webb Mitovich, TVLine, 7 Apr. 2025
See All Example Sentences for treachery
Stephanie Zacharek, Time, 29 Apr. 2025
But amid the bloodbaths and treacheries, Westeros still penciled in time for a little romance — some more compelling than others (Jon and Ygritte > Jon and Daenerys).
—Tyler Aquilina, EW.com, 17 Apr. 2025
In true Christie fashion, the Tressilian reunion inevitably leads to murder, familial treachery, and a labyrinthine hunt for the killer.
—Erik Morse, Vogue, 15 Apr. 2025
Press play below to learn more about Wells’ treachery, and to get a sneak peek at the fugitive interacting with her latest target.
—Matt Webb Mitovich, TVLine, 7 Apr. 2025
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
Noun
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This final betrayal will be his undoing, as the enraged creature, doomed to live without connection, care, or love, finally snaps and destroys everything Victor holds dear.—
Thomas Page McBee,
Travel + Leisure,
16 Sep. 2025
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Your narrative, with its shifting of points of view among four longtime friends, allows for intimacy and drama as well as betrayals and loss as Desiree, Nakia, Monique and January (with Desiree’s estranged sister Danielle mostly on the sidelines) each tell their stories.—
Jane Ciabattari
September 16,
Literary Hub,
16 Sep. 2025
Noun
-
Parliamentary officials met with at least 10 student unions, whose demands included the release of demonstrators and an investigation into Prabowo’s accusation about treason.—
Reuters,
NBC news,
4 Sep. 2025
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The main opposition party, CHADEMA, was disqualified in April and its leader Tundu Lissu remains in custody after he was charged with treason for demanding electoral reforms.—
Preeti Jha,
semafor.com,
29 Aug. 2025
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 22 Sep. 2025.
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