uberrimae fidei
C2CEFR level
97/100Rarity: very rare
TechnicalRegister
Law adj.
Demanding the utmost good faith, with a positive duty to disclose all material facts.
Insurance is a contract uberrimae fidei, so the applicant's silence on the prior claim is fatal.
Business noun
The duty of both parties to disclose every material fact in complete honesty.
Saying nothing about the earlier fire breached uberrimae fidei and let the underwriter void the policy.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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