TREACHERY Synonyms: 43 Similar and Opposite Words

treachery

noun

ˈtre-chə-rē

Definition of treachery

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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Example Sentences

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.

Recent Examples of treachery For his treachery in conspiring with Gwayne, Daemon claims Corlys as his own prisoner. — Amanda Whiting, Vulture, 10 Aug. 2026 Guides spoke of the monthlong siege that ended only because of the treachery of a local noble who turned on the sultan and allowed British troops to scale the walls. — Ishaan Tharoor, New Yorker, 2 July 2026 This is not treachery but the truest and noblest affection. — Ann Manov, Harpers Magazine, 23 June 2026 Peacock’s adventures in treachery The Traitors was the top dog, scoring five prizes including Best Competition Series and Best Host for Alan Cumming. — Erik Pedersen, Deadline, 3 June 2026 See All Example Sentences for treachery

Recent Examples of Synonyms for treachery

Noun

The boldest declarations of solidarity, Lee knows, often precede the quietest and cruellest of betrayals.

— Justin Chang, New Yorker, 23 Oct. 2026
Secretly draining shared savings or hiding major debt are obvious betrayals.

— Jenna Ryu, Washington Post, 23 Oct. 2026

Definition of betrayal

Noun

The deaths of two CIA agents and two Mexican officers in an April crash after a drug-lab raid have triggered a rare federal treason case against Chihuahua’s former top prosecutor.

— María Verza, Los Angeles Times, 25 Oct. 2026
Mexico has not successfully brought to trial a charge of treason in decades despite a recent attempt.

— ABC News, ABC News, 25 Oct. 2026

Definition of treason

Browse Nearby Words

treacherousness

treachery

tread

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“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 29 Oct. 2026.

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Synonyms of treachery

noun

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