unwillingness

/ʌnˈwɪlɪŋnəs/
noun
  1. The state or quality of not wanting to do something; reluctance.
    • The team's unwillingness to practice on weekends hurt their chances of winning.
    • She showed an unwillingness to try new foods, sticking only to what she knew.
    • His unwillingness to apologize made the argument last much longer.