一いち部ぶ保ほ険けん

noun, noun which may take the genitive case particle 'no'

under-insurance

Insurance term: a situation where the insured amount is less than the actual value of the insured object, leaving the policyholder partially exposed.

• 火か災さい保ほ険けんが一いち部ぶ保ほ険けんだったため、全ぜん額がくは補ほ償しょうされなかった。

  Because the fire insurance was under-insurance, the full amount was not covered.