uninsurable risk
noun [ C or U ]
INSURANCE ukusa 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.