堅けん牢ろう堅けん固ご

noun, na-adjective

firm and solid; stout and durable

A yojijukugo emphasizing robust construction and lasting strength, used for physical objects, structures, or abstract systems.

• この橋はしは堅けん牢ろう堅けん固ごな造つくりで、百ひゃく年ねんはもつと言いわれている。

  This bridge is built firm and solid, and is said to last a hundred years.

• 彼かれの主しゅ張ちょうは堅けん牢ろう堅けん固ごで、誰だれも反はん論ろんできなかった。

  His argument was stout and durable; no one could refute it.