seditious

from WordNet (r) 3.0 (2006)

seditious
    adj 1: arousing to action or rebellion [syn: {incendiary},
           {incitive}, {inflammatory}, {instigative}, {rabble-
           rousing}, {seditious}]
    2: in opposition to a civil authority or government [syn:
       {insurgent}, {seditious}, {subversive}]

from The Collaborative International Dictionary of English v.0.48

Seditious \Se*di"tious\, a.[L. seditiosus: cf. F. s['e]ditieux.]
   1. Of or pertaining to sedition; partaking of the nature of,
      or tending to excite, sedition; as, seditious behavior;
      seditious strife; seditious words.
      [1913 Webster]

   2. Disposed to arouse, or take part in, violent opposition to
      lawful authority; turbulent; factious; guilty of sedition;
      as, seditious citizens.
      [1913 Webster] -- {Se*di"tious*ly}, adv. --
      {Se*di"tious*ness}, n.
      [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

34 Moby Thesaurus words for "seditious":
      alienated, breakaway, contumacious, disaffected, disloyal,
      dissident, extreme, extremistic, factious, faithless, inflammatory,
      insurgent, insurrectionary, insurrectionist, lawless, mutineering,
      mutinous, perfidious, rabble-rousing, rebel, rebellious,
      refractory, revolutional, revolutionary, riotous, seditionary,
      subversive, traitorous, treacherous, treasonable, turbulent,
      turncoat, unfaithful, violent