The Collaborative International Dictionary of English v.0.48:

Disincline \Dis`in*cline"\, v. t. [imp. & p. p. Disinclined;
   p. pr. & vb. n. Disinclining.]
   To incline away the affections of; to excite a slight
   aversion in; to indispose; to make unwilling; to alienate.
   [1913 Webster]

         Careful . . . to disincline them from any reverence or
         affection to the Queen.                  --Clarendon.
   [1913 Webster]

         To social scenes by nature disinclined.  --Cowper.
   [1913 Webster]

WordNet (r) 3.0 (2006):

disinclined
    adj 1: unwilling because of mild dislike or disapproval;
           "disinclined to say anything to anybody" [ant:
           inclined(p)]