• synonyms


[tree-zuh-nuh-buh l]
See more synonyms for treasonable on Thesaurus.com
  1. of the nature of treason.
  2. involving treason; traitorous.
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Origin of treasonable

First recorded in 1325–75, treasonable is from the Middle English word tresonabill. See treason, able
Related formstrea·son·a·bly, adverbnon·trea·son·a·ble, adjectivenon·trea·son·a·ble·ness, nounnon·trea·son·a·bly, adverbun·trea·son·a·ble, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for treasonable

Historical Examples

  • Rotherby took a seat by the desk, his hand upon the treasonable letters.

    The Lion's Skin

    Rafael Sabatini

  • But I ask your pardon, my dear friend, for this treasonable talk.

  • So as to have time for carrying on your treasonable mischief, I suppose.

    Rodney, the Ranger

    John V. Lane

  • Their commander purchased his life by apostasy and a treasonable oath.

    Peter the Hermit

    Daniel A. Goodsell

  • The opinions from which we differ in this instance are treasonable.