Synonyms for Irredeemable:

adj.

hopeless (adjective)
irreparable, incurable, hopeless.
incorrigible (adjective)
wicked.
irreparable (adjective)
hopeless.

n.

incurable, constant, whatever happens, invariable, hopeless, rigid, unvarying, irreparable, final, firm, unchanging, beyond redemption, for good. bid price, bull market, bondholder, bearish, bear market, bullish, bid, bear, bull, broker-dealer. creditworthy, debt collector, extension, creditor, compound interest, borrowing power, creditworthiness, borrowing, foreclose, financier. irredeemable (noun)
unconvertible, irreclaimable, unredeemable, wicked, unexchangeable, inconvertible, unreformable.

Other synonyms:

discouraging
hopeless.
incurable
irreparable.
Other relevant words:
hopeless, incurable, irreparable, final.

Usage examples for irredeemable

  1. The other debt was irredeemable but this at any rate could be paid. – The White Wolf and Other Fireside Tales by Arthur Thomas Quiller-Couch
  2. Then the storm- cloud of the revolution broke athwart the length and breadth of fair France, relentless, and indomitable and irredeemable – Terribly Intimate Portraits by Noël Coward
  3. Irredeemable hideousness and the comfort of congregations as a set- off to it. – Gossamer 1915 by George A. Birmingham