treasonable

Relating to, constituting, or involving treason.

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

Synonyms See perfidious.

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

involving, or constituting treason

having the character of, or characteristic of, a traitor