糠に釘

ぬかにくぎ

Also written ぬかに釘

Meanings

1. Expression, Noun having no effect; waste of effort

Kanji

• 糠 rice bran. Read as ぬか.
• 釘 nail; tack; peg. Read as くぎ.

Word lists

• Idioms

Jinuma: Japanese Dictionary · Word lists