WordWeb Online

1. Unwillingness to do something contrary to your custom
   "a reluctant smile";
   - loath, loth
    
2. Disinclined to become involved
   "they were usually reluctant to socialize"; "reluctant to help"
    
3. Not eager
   "foreigners stubbornly reluctant to accept our ways"; "fresh from college and reluctant for the moment to marry him"

See also: disinclined, uneager, unwilling