Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Relating to, constituting, or involving treason: Espionage is a treasonable act.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. involving, or constituting treason

from the GNU version of the Collaborative International Dictionary of English

  • adj. Pertaining to treason; consisting of treason; involving the crime of treason, or partaking of its guilt.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to treason; consisting of treason; involving the crime of treason, or partaking of its guilt.
  • Synonyms See perfidious.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. having the character of, or characteristic of, a traitor

Etymologies

Sorry, no etymologies found.

Examples

  • Lord Allen may have been wrong in his head, or ill-advised, or foolishly over-zealous, but his ill-tempered upbraiding of the Dublin Corporation for what he called their treasonable extravagance in thus honouring Swift, whom he deemed an enemy of the King, was the act of a fool.

    The Prose Works of Jonathan Swift, D.D. - Volume 07 Historical and Political Tracts-Irish

  • Government alleged that these persons had been engaged in treasonable conspiracies, and, the President having exercised his legitimate right in suspending the Habeas Corpus Act, he was not prepared to say that the detention of those persons was illegal, or demanded more decided

    Imperial Parliament

  • Since then, I have made it my business to establish contacts and relationships in Beijing that would be called treasonable, and for which I should be shot.

    Quiller Bamboo

  • Those words would have been called treasonable to the people of France.

    I Will Repay

  • Blennerhasset's Island: since the only acts which could be called treasonable had occurred elsewhere, the court declared the evidence insufficient, and there was nothing for the jury to do but to bring him in not guilty.

    Formation of the Union, 1750-1829

  • Grand Master the Duke of Cumberland, what must be called a treasonable conspiracy through the Orange lodges and even through Orangemen who were actually serving in the King's Army.

    A History of the Four Georges and of William IV, Volume IV (of 4)

  • The second Exclusion Bill was founded, not on his religion, but on his politics, that is, his treasonable connection with the King of France.

    Lectures on Modern history

  • The unfortunate plant-cutters, who had merely been imprisoned, and such of them dismissed from time to time as would give assurance of penitence, and promise a peaceable demeanor, were now proceeded against with the utmost rigor, for what the king was pleased to call their treasonable conduct.

    Historical collections of Virginia

  • All those who were in any manner connected with the contemplated expedition disclaimed the idea of treasonable designs, averring that, if such were the views of Colonel Burr, they had been deceived.

    Memoirs of Aaron Burr

  • The entries confirm in every particular the statements of Truxton, Bollman, and others, and repudiate the idea of treasonable designs.

    Memoirs of Aaron Burr

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