Other forms: irredeemably
If something is beyond all hope, you can describe it as irredeemable — like your disastrously bad performance at the school talent show.
Use the adjective irredeemable when there's no way to fix or save a person or situation. You could describe your aunt whose house is so full of stuffed animals that the door barely opens as an irredeemable hoarder, or your friend's cheap jewelry as irredeemable junk. It comes from the word redeem, which is related to redemption, whose root word is the Latin redimere, "buy back."