[1] : The Collaborative International Dictionary of English v.0.48

factious \fac"tious\ a. l. factiosus: cf. f. factieux.
   1. given to faction; addicted to form parties and raise
      dissensions, in opposition to government or the common
      good; turbulent; seditious; prone to clamor against public
      measures or men; -- said of persons.
      1913 webster

            factious for the house of lancaster.  --shak.
      1913 webster

   2. pertaining to faction; proceeding from faction;
      indicating, or characterized by, faction; -- said of acts
      or expressions; as, factious quarrels.
      1913 webster

            headlong zeal or factious fury.       --burke.
      -- fac"tiously, adv. -- fac"tiousness, n.
      1913 webster
see also:
fac"tiously fac"tiousness 

[2] : WordNet (r) 2.0

factious
     adj : dissenting especially dissenting with the majority opinion
           syn: dissentious, divisive
see also:
dissentious divisive 

[3] : Moby Thesaurus II by Grady Ward, 1.0

51 moby thesaurus words for "factious":
   aggressive, alienated, argumentative, at loggerheads, at odds,
   bellicose, belligerent, bickering, breakaway, combative,
   conflicting, contending, contentious, contumacious, disaffected,
   discordant, disputatious, divisive, eristic, estranged, extreme,
   extremistic, factional, fighting, insurgent, insurrectionary,
   irascible, irritable, litigious, mutineering, mutinous, partisan,
   polarizing, polemic, pugnacious, quarrelsome, rebel, rebellious,
   refractory, revolutional, revolutionary, riotous, seditionary,
   seditious, shrewish, subversive, traitorous, treasonable,
   turbulent, warring, wrangling

Factious >> F Words
Factious, definition of term: Factious
factious_pag1.html