/ ˌʌnprɪˈpeəd; NAmE -ˈperd/ adjective
1.
unprepared (for sth) not ready or not expecting sth :
She was totally unprepared for his response.
2.
unprepared (to do sth) ( formal ) not willing to do sth :
She was unprepared to accept that her marriage was over.
OPP prepared