海かい内だい無む双そう

noun

unparalleled in the whole country; peerless throughout the land

A yojijukugo (four-character idiom) used to describe someone or something that has no equal within the country. Literary and somewhat formal; not used in everyday conversation.

• 彼かれの剣けん術じゅつは海かい内だい無む双そうと称たたえられた。

  His swordsmanship was praised as unparalleled in the whole country.

• この美び術じゅつ品ひんは海かい内だい無む双そうの価か値ちがある。

  This work of art has peerless value throughout the land.