The Collaborative International Dictionary of English v.0.48:

Pedantic \Pe*dan"tic\, Pedantical \Pe*dan"tic*al\, a.
   Of or pertaining to a pedant; characteristic of, or
   resembling, a pedant; ostentatious of learning; as, a
   pedantic writer; a pedantic description; a pedantical
   affectation. "Figures pedantical." --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pedantic
    adj 1: marked by a narrow focus on or display of learning
           especially its trivial aspects [syn: academic,
           donnish, pedantic]