factious (adj.)

• aggressive
• alienated
• argumentative
• bellicose
• belligerent
• breakaway
• combative
• conflicting
• contentious
• contumacious
• disaffected
• discordant
• disputatious
• divisive
• eristic
• estranged
• extreme
• fighting
• insurgent
• insurrectionary
• irascible
• irritable
• litigious
• mutinous
• partisan
• polemic
• pugnacious
• quarrelsome
• rebellious
• refractory
• revolutionary
• riotous
• seditious
• shrewish
• subversive
• traitorous
• treasonable
• turbulent
• warring