unredeemable

/ˌʌnrɪˈdiːməbəl/
adjective
  1. Impossible to exchange for money, goods, or something of value.
    • The old gift card was unredeemable because the store had closed.
    • The ticket was unredeemable after the expiration date.
    • These outdated coupons are unredeemable at any location.
  2. Impossible to save, improve, or make acceptable again.
    • His behavior was so cruel that many considered him unredeemable.
    • The villain in the story seemed completely unredeemable.
    • The company's reputation was unredeemable after the scandal.
Antonyms
What does "unredeemable" mean? | whatsthatwordmean | whatsthatwordmean