treasonous

[ tree-zuh-nuhs ]

adjective

1. treasonable.

Other Words From

• treason·ous·ly adverb

Word History and Origins

Origin of treasonous¹

First recorded in 1585–95; treason + -ous

Example Sentences

Gen. William Barr arrest Biden, former President Obama and former Secretary of State Hillary Clinton for what he claimed was a “treasonous plot” to spy on his 2016 campaign.

From Los Angeles Times

Since 2016, many of us on the left have wondered how a charmless, treasonous and psychopathic con man could garner the support of half the country.

From Salon

When asked specifically about the South Africa-born Musk and the circles in which the billionaire runs, John said that "Washington would've been troubled by foreign powers trying to undermine the sanctity of American elections by interfering with or by buying up or shaping editorial opinion. And of course, the Russians and Trump, this would have been seen as treasonous, straight up."

From Salon

I thought that Trump’s fraud convictions, his treasonous attempt to overthrow the government, his racist and fascist statements and his obvious apparent cognitive decline would have doomed his candidacy before now.

From Salon

Slate’s Mark Joseph Stern got it right when he observed that the immunity decision that Roberts wrote “fundamentally altered American democracy…., awarding the president a sweeping and novel immunity when he weaponizes the power of his office for corrupt, violent, or treasonous purposes.”

From Salon