hell bent

/ˈhɛlˌbɛnt/
adjective
  1. Determined to do something at any cost; recklessly or stubbornly set on a course of action.
    • He is hell-bent on proving that his invention works, no matter how many times it fails.
    • She was hell-bent on finishing the marathon despite her injury.
    • The politician seemed hell-bent on ignoring the public's concerns.
Antonyms