irredeemable /ɪɹəˈdiːməbəl/adjective 2noun 1forms 1 adjective2 •Not redeemable; not able to be restored, recovered, revoked, or escaped.It wavered an instant—then there was a heartrending crash—and the canary-coloured cart, their pride and their joy, lay on its side in the ditch, an irredeemable wreck. — 1908 •Not able to be cancelled by a payment or converted to another form of currency or financial instrument, especially one considered more secure or reliable. noun1 •A financial instrument that cannot be freely redeemed. formsirredeemables