treasonable

[ tree-zuh-nuh-buh l ]
/ ˈtri zə nə bəl /

adjective

of the nature of treason.
involving treason; traitorous.

Origin of treasonable

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

OTHER WORDS FROM treasonable

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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