irredeemable

/ˌɪrɪˈdiməbəl/
adjective
  1. Too bad to be corrected, improved, or saved.
    • After the scandal, his reputation was considered irredeemable.
    • The damage to the painting was irredeemable.
    • Some people believe that certain criminals are irredeemable.
  2. Not able to be exchanged for money or goods.
    • The old currency became irredeemable after the government changed the system.
    • The bank declared the bonds irredeemable due to the company's bankruptcy.
    • These coupons are irredeemable after the expiration date.