IPA: /ɪnˈʃʊərəˌbɪlɪti/
KK: /ɪnˈʃʊrəbɪlɪti/
The quality or condition that allows something to be covered by insurance, meaning an insurance company is willing to provide a policy for it.
The insurability of the property was assessed before the insurance policy was issued.
Insurability is formed from "in-" (meaning not) and "insure" (from Latin "securare", meaning to make safe) combined with the suffix "-ability" (meaning the quality of being able to). The word refers to the quality of being able to be insured or not being insurable.
Think of 'not' ('in-') being able to 'make safe' ('securare') — that's why insurability refers to the quality of being able to be insured.