[syn: positivist, positivistic, positive]
The Collaborative International Dictionary of English v.0.48:
Positivist \Pos"i*tiv*ist\, n.
   A believer in positivism. -- a. Relating to positivism.
   [1913 Webster]
WordNet (r) 3.0 (2006):
positivist
    adj 1: of or relating to positivism; "positivist thinkers";
           "positivist doctrine"; "positive philosophy" [syn:
           positivist, positivistic, positive]
    n 1: someone who emphasizes observable facts and excludes
         metaphysical speculation about origins or ultimate causes
         [syn: positivist, rationalist]
Moby Thesaurus II by Grady Ward, 1.0:
27 Moby Thesaurus words for "positivist":
   ass, bigot, bitter-ender, bullethead, diehard, doctrinaire,
   dogmatist, dogmatizer, donkey, fanatic, hardnose, infallibilist,
   intransigeant, intransigent, last-ditcher, maverick, mule,
   opinionist, perverse fool, pighead, practical person, pragmatist,
   purist, realist, standpat, standpatter, stickler