misology

from WordNet (r) 3.0 (2006)

misology
    n 1: hatred of reasoning

from The Collaborative International Dictionary of English v.0.48

Misology \Mi*sol"o*gy\ (m[i^]*s[o^]l"[-o]*j[y^]), n. [Gr.
   misologi`a; misei^n to hate + lo`gos discourse.]
   Hatred of argument or discussion; hatred of enlightenment.
   --G. H. Lewes.
   [1913 Webster]