uninsurable risknoun [ C or U ]
ukusINSURANCEa situation that you cannot protect yourself against by buying insurance because it is impossible to calculate how likely it is to happen, or how much damage it will cause:
In many cases catastrophes, such as earthquakes, have become uninsurable risks.
a situation for which an insurance company will not provide insurance, because, for example, it is certain to happen:
A person suffering from a terminal illness is considered to be an uninsurable risk.