The Collaborative International Dictionary of English v.0.48:

coenobitic \coenobitic\ coenobitical \coenobitical\adj.
   of or relating to or befitting cenobites or their practices
   of communal living. Opposite of eremitic.

   Syn: cenobitic, cenobitical.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

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