treasonous

adjective

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

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.
There will be more local politicians who fail the integrity test and become treasonous to their constituents. Dp Opinion, Denver Post, 31 May 2026 Our democracy, our constitution, our rule of law are being challenged right now as never before by a reckless, racist, incompetent, treasonous president. Mike Stunson, USA Today, 28 May 2026 This president, who called his treasonous supporters to arms, wants our tax dollars to compensate these tyrants. Sun Sentinel Editorial Board, Sun Sentinel, 27 May 2026 But in the shadows, amid growing unease at the bloodthirsty actions of the realm’s merciless Mad King, dissenters from his inner circle anxiously advance a treasonous plot. Ryan Brennan april 3, Charlotte Observer, 3 Apr. 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

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Cite this Entry

“Treasonous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/treasonous. Accessed 17 Jun. 2026.

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