Synonyms of irreplaceable

2 Syllables
ruined, broken, destroyed
3 Syllables
cureless, hopeless
4 Syllables
incurable, irremedial, impossible
5 Syllables
irredeemable, irreparable, incorrigible, irreversible, irremediable, irretrievable, uncorrectable
6 Syllables
unrecoverable, irrecoverable