1. treasonous - Adjective
2. treasonous - Adjective Satellite
Treasonable.
Source: Webster's dictionarythe faithless Benedict Arnold Source: Internet
a lying traitorous insurrectionist Source: Internet
A major deterrent to the development of opposing parties was the idea that there could only be one "King's Party" and to oppose it would be disloyal or even treasonous. Source: Internet
But he didn't think the war was being waged against "treasonous" States as such (since the refusal of the Union to recognize their right to secede made the ordinances of secession null) but merely to "compel the obedience of rebellious individuals". Source: Internet
Finally, she was persuaded of Mary's (treasonous) complicity in the plotting against her, and she signed the death warrant in 1586. Source: Internet
A change in tack now that the normal expletive laden responses by the illegal and treasonous militia gets them nowhere. Source: Internet