IPA: /ˌɪrɪˈzɒlvəbl/
KK: /ɪrɪˈzɑlvəbl/
Something that cannot be solved or settled; it remains unresolved or cannot be made clear.
The conflict between the two parties seemed irreconcilable and left many issues irretrievable.
Irresolvable → It is formed from "in-" (meaning not) and "resolubilis" (from Latin, meaning able to be resolved). The word "irresolvable" means not able to be resolved or settled.
Think of something that cannot be 'resolved' — 'in-' means not, and 'resolubilis' means able to be resolved.