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):

disincline
    v 1: make unwilling [syn: indispose, disincline] [ant:
         dispose, incline]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "disincline":
   blunt, chill, cool, damp, dampen, deflect, deter, disaffect,
   discourage, disinterest, distract, divert, indispose, put off,
   quench, repel, turn aside, turn away, turn from, turn off,
   wean from