The Collaborative International Dictionary of English v.0.48:

Unbigoted \Unbigoted\
   See bigoted.

WordNet (r) 3.0 (2006):

unbigoted
    adj 1: not opinionated

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "unbigoted":
   broad, broad-gauged, broad-minded, catholic, cosmopolitan,
   ecumenical, ecumenistic, freethinking, latitudinarian, liberal,
   libertarian, libertine, noninsular, open-minded, spacious of mind,
   tolerant, unfanatical, unhidebound, unparochial, unprovincial,
   wide, wide-minded