treasonable (adj.)

• apostate
• breakaway
• collaborative
• degenerate
• disloyal
• extreme
• factious
• faithless
• insurgent
• insurrectionary
• mutinous
• rebellious
• recreant
• renegade
• revolutionary
• riotous
• seditious
• subversive
• traitorous
• treasonous
• turbulent
• two-timing