treasonable

[ tree-zuh-nuh-buhl ]

adjective

1. of the nature of treason.
2. involving treason; traitorous.

Other Words From

• treason·a·bly adverb
• non·treason·a·ble adjective
• non·treason·a·ble·ness noun
• non·treason·a·bly adverb
• un·treason·a·ble adjective

Word History and Origins

Origin of treasonable¹

First recorded in 1325–75, treasonable is from the Middle English word tresonabill. See treason, able

Example Sentences

Amid this crackdown, army chief Christopher Musa warned that it is a "treasonable offence" to fly the flags of foreign countries.

From BBC

“To me, those acts are treasonable,” Solensten said of the Bidens.

From Washington Times

All five have been charged with being suspected members of a terrorist group and planning “highly treasonable” acts against the government, it said.

From Washington Post

Randolphs unfortunate utterances were not truly treasonable, as he spent the remainder of his life trying vainly and in his foggy style to explain.

From Literature

After a similar grant, the 1776 constitution of North Carolina warned: "nothing herein contained shall be construed to exempt preachers of treasonable or seditious discourses, from legal trial and punishment."

From Salon