金こん剛ごう不ふ壊え

noun

firm and indestructible; unshakable; adamantine

A yojijukugo describing something so solid and unbreakable that it cannot be destroyed; often used figuratively for unshakable resolve or faith.

• 彼かれの信しん念ねんは金こん剛ごう不ふ壊えだ。

  His conviction is unshakable.