The Collaborative International Dictionary of English v.0.48:

Insurrectionary \In`sur*rec"tion*a*ry\, a.
   Pertaining to, or characterized by, insurrection; rebellious;
   seditious.
   [1913 Webster]

         Their murderous insurrectionary system.  --Burke.
   [1913 Webster]

WordNet (r) 3.0 (2006):

insurrectionary
    adj 1: of or relating to or given to insurrection [syn:
           insurrectional, insurrectionary]

Moby Thesaurus II by Grady Ward, 1.0:

25 Moby Thesaurus words for "insurrectionary":
   breakaway, cataclysmic, catastrophic, extreme, extremistic,
   factious, insurgent, mutineering, mutinous, radical, rebel,
   rebellious, revolutional, revolutionary, revulsionary, revulsive,
   riotous, seditionary, seditious, subversive, sweeping, traitorous,
   transilient, treasonable, turbulent