IPA: /ˌʌnɪnˈʃʊərəbl/
KK: /ʌnɪnˈʃʊrəbəl/
Something that cannot be covered by insurance.
The company refused to insure the property because it was deemed uninsurable.
Uninsurable → It is formed from "un-" (meaning not) and "insurable" (from Latin "insurabilis", where "in-" means not and "sura" means to assure or guarantee). The word "uninsurable" means not able to be assured or guaranteed, typically in the context of insurance policies.
Think of 'not' ('un-') being applied to something that cannot be 'assured' ('sura') — that's why uninsurable means something that cannot be guaranteed.