insurability has no recorded synonym. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is uninsurability.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
the quality of being insurable; the conditions under which an insurance company will issue insurance to an applicant (based on standards set by the insurance company)
Synonyms, antonyms and the broader and narrower relations for insurability come from Princeton University’s WordNet. Full sources and licences.