unmitigable

/ʌnˈmɪtɪɡəbəl/
adjective
  1. Impossible to make less severe, intense, or painful.
    • Scientists warned that the damage to the ozone layer was unmitigable without global action.
    • His unmitigable anger made it impossible to have a calm conversation.
    • The unmitigable grief of losing a child haunted her for years.
Antonyms
What does "unmitigable" mean? | whatsthatwordmean | whatsthatwordmean