Synonyms and related words :
ablated, beyond recall, beyond remedy, by the board, changeless, constant, consumed, cureless, depleted, dissipated, eroded, expended, forfeit, forfeited, gone, immedicable, immutable, incommutable, inconvertible, incorrigible, incurable, indefeasible, inert, inoperable, insusceptible of change, intransmutable, invariable, irreclaimable, irrecoverable, irredeemable, irreformable, irremediable, irreparable, irreversible, irrevocable, lasting, long-lost, lost, lost to, noble, nonreturnable, nonreversible, out the window, past hope, past praying for, permanent, remediless, reverseless, ruined, shrunken, squandered, terminal, unalterable, unalterative, unaltered, unchangeable, unchanged, unchanging, uncorrectable, undeflectable, undeviating, undone, unmitigable, unmodifiable, unrelievable, unremitting, unrestorable, unreturnable, unsalvable, unsalvageable, unsusceptible, unvariable, unvarying, used, used up, wasted, worn away