treasonous Meaning, Definition & Usage

  1. adjective satellite having the character of, or characteristic of, a traitor
    unfaithful; treasonable; traitorous; faithless.
    • the faithless Benedict Arnold
    • a lying traitorous insurrectionist

WordNet


Trea"son*ous adjective
Definitions
  1. Treasonable. Shak.
    The treasonous book of the Court of King James. Pepys.

Webster 1913