21 synonyms for insurance such as immunity, (financial) protection, defence, and guarantee. Insurance is a noun, and its antonyms are endangerment and harm.
(financial) protection, assurance, cover, indemnification, indemnity, security, and surety.
Backstop, defence, guarantee, immunity, precaution, preventive measure, protection, provision, safeguard, safety measure, security, shelter, and warranty.