adjective

relating or inclined to dissension.

a factious country

divided,split,sectarian,schismatic,dissenting,contentious,discordant,conflicting,argumentative,disagreeing,disputatious,quarrelling,quarrelsome,clashing,warring,at variance,at loggerheads,at odds,disharmonious,tumultuous,turbulent,dissident,rebellious,insurrectionary,seditious,mutinous