IPA: /ɪrɪˈkleɪməbl/
KK: /ɪrɪˈkleɪməbl/
Something that cannot be recovered or restored to a previous state.
The factory was left in an irreclaimable condition after the fire.
Irreclaimable → It is formed from "ir-" (meaning not) and "reclaim" (from Latin "reclamare", meaning to cry out against or to reclaim) and the suffix "-able" (meaning capable of). The word "irreclaimable" means not capable of being reclaimed or recovered.
Think of something that cannot be 'reclaimed' ('reclaim') and remember that 'ir-' means not, so 'irreclaimable' refers to something that cannot be recovered.