WordNet (r) 3.0 (2006):

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    adj 1: old-fashioned and out of date [syn: fusty,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

Moby Thesaurus II by Grady Ward, 1.0:

79 Moby Thesaurus words for "standpat":
   Bircher, Bourbon, Tory, adamant, adamantine, at a standstill,
   backward, bitter-ender, conservatist, conservative, contemplative,
   die-hard, diehard, do-nothing, dormant, extreme right-winger, firm,
   fogyish, frozen, fundamentalist, hard hat, idle, immobile,
   immotile, immotive, immovable, imperialist, inactive, inert,
   inflexible, irremovable, laissez-aller, laissez-faire, meditative,
   monarchist, motionless, neuter, neutral, nonprogressive, old liner,
   old-fashioned, old-fogyish, old-line, opposed to change, paralytic,
   paralyzed, passive, pat, preservative, procrastinating, quiescent,
   quietist, quietistic, radical right, reactionarist, reactionary,
   reactionist, right, right of center, right wing, right-wing,
   right-winger, rightist, rigid, royalist, social Darwinist,
   stagnant, stagnating, standpatter, static, stationary, tory,
   ultraconservative, unmovable, unmoving, unprogressive, unyielding,
   vegetable, vegetative