Also know in its Latin form as "uberrimae fidei".
In the insurance market, the doctrine of utmost good faith requires that the party seeking insurance discloses all relevant personal information. For example, if you are applying for life insurance, you are required to disclose any previous health problems you may have had. Likewise, the insurance agent selling you the coverage must disclose the critical information you need to know about your contract and its terms.
Investment dictionary. Academic. 2012.