isolationistic

from WordNet (r) 3.0 (2006)

isolationistic
    adj 1: of or relating to isolationism [syn: {isolationist},
           {isolationistic}]

from The Collaborative International Dictionary of English v.0.48

isolationist \i`so*la"tion*ist\, isolationistic
\i`so*la`tion*ist"ic\adj.
   1. of or pertaining to isolationism.

   Syn: isolationist.
        [WordNet 1.5]

   2. Favoring or supporting isolationism; -- of people.
      [PJC]