Source : Webster's Revised Unabridged Dictionary (1913)

Disinclination \Dis*in`cli*na"tion\, n.
   The state of being disinclined; want of propensity, desire,
   or affection; slight aversion or dislike; indisposition.

         Disappointment gave him a disinclination to the fair
         sex.                                     --Arbuthnot.

         Having a disinclination to books or business.
                                                  --Guardian.

   Syn: Unwillingness; disaffection; alienation; dislike;
        indisposition; distaste; aversion; repugnance.

Source : WordNet®

disinclination
     n 1: that toward which you are inclined to feel dislike; "his
          disinclination for modesty is well known" [ant: {inclination}]
     2: a certain degree of unwillingness; "a reluctance to commit
        himself"; "after some hesitation he agreed" [syn: {reluctance},
         {hesitancy}, {hesitation}, {indisposition}]