The Collaborative International Dictionary of English v.0.48:

Dogmatism \Dog"ma*tism\, n.
   The manner or character of a dogmatist; arrogance or
   positiveness in stating opinion.
   [1913 Webster]

         The self-importance of his demeanor, and the dogmatism
         of his conversation.                     -- Sir W.
                                                  Scott.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dogmatism
    n 1: the intolerance and prejudice of a bigot [syn: bigotry,
         dogmatism]

Moby Thesaurus II by Grady Ward, 1.0:

59 Moby Thesaurus words for "dogmatism":
   Sabbatarianism, balkiness, bibliolatry, bigotry, blindness,
   bullheadedness, deafness, determination, doggedness,
   dogmaticalness, evangelicalism, fanaticism, fixed mind,
   fundamentalism, hardheadedness, headstrongness, hideboundness,
   hyperorthodoxy, infallibilism, inflexible will, intolerance,
   literalism, mulishness, obduracy, obstinacy, obstinateness,
   opinionatedness, overzealousness, peremptoriness, perseverance,
   pertinacity, pigheadedness, positiveness, positivism, precisianism,
   purism, puritanicalness, puritanism, restiveness, sabbatism,
   scripturalism, self-opinionatedness, self-will, staunchness,
   stiff neck, stiff-neckedness, straitlacedness,
   strict interpretation, strictness, strongheadness, stubbornness,
   sulkiness, sullenness, tenaciousness, tenacity, uncooperativeness,
   unpersuadableness, unregenerateness, willfulness