The Collaborative International Dictionary of English v.0.48:

Tumultuary \Tu*mul"tu*a*ry\ (t[-u]*m[u^]l"t[-u]*[asl]*r[y^];
   135), a. [L. tumultuarius: cf. F. tumultuaire.]
   1. Attended by, or producing, a tumult; disorderly;
      promiscuous; confused; tumultuous. "A tumultuary
      conflict." --Eikon Basilike.
      [1913 Webster]

            A tumultuary attack of the Celtic peasantry.
                                                  --Macaulay.
      [1913 Webster]

            Sudden flight or tumultuary skirmish. --De Quincey.
      [1913 Webster]

   2. Restless; agitated; unquiet.
      [1913 Webster]

            Men who live without religion live always in a
            tumultuary and restless state.        --Atterbury.
      [1913 Webster]