WordNet (r) 3.0 (2006):

unprogressive
    adj 1: old-fashioned and out of date [syn: fusty,
           standpat(a), unprogressive, nonprogressive]

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "unprogressive":
   backward, behindhand, benighted, conservative, die-hard, fogyish,
   ignorant, nonprogressive, old-fashioned, old-fogyish, old-line,
   opposed to change, preservative, reactionary, reactionist,
   right of center, right-wing, standpat, ultraconservative,
   underdeveloped, undeveloped, unenlightened