The Collaborative International Dictionary of English v.0.48:

Cenobitic \Cen`o*bit"ic\, Cenobitical \Cen`o*bit"ic*al\a. [Cf.
   F. c['e]nobitique.]
   Of or pertaining to a cenobite.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cenobitical
    adj 1: of or relating to or befitting cenobites or their
           practices of communal living [syn: cenobitic,
           coenobitic, cenobitical, coenobitical] [ant:
           eremitic, eremitical]