treasonous

adjective

trea·​son·​ous ˈtrē-zə-nəs How to pronounce treasonous (audio)
ˈtrēz-nəs
Synonyms of treasonousnext
: treasonable

Examples of treasonous in a Sentence

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.
Meanwhile, there will be heavy pressure on Eisenkot to reach a deal with the Arab parties, while Netanyahu and his allies are likely to cast any such alliance as illegitimate and even treasonous. — Arkansas Online, 28 Oct. 2026 Most importantly, no more need for gas nor the treasonous chicanery plotted by the president and an enemy. — Voice Of The People, New York Daily News, 22 Oct. 2026 The 'leakers' of these treasonous statements are being hunted down. — CBS News, 6 Aug. 2026 There will be more local politicians who fail the integrity test and become treasonous to their constituents. — Dp Opinion, Denver Post, 31 May 2026 See All Example Sentences for treasonous

Word History

First Known Use

1593, in the meaning defined above

Time Traveler
The first known use of treasonous was in 1593

Rhymes for treasonous

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Browse Nearby Words

treason felony
treasonous
treasr
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Cite this Entry

“Treasonous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/treasonous. Accessed 1 Nov. 2026.

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