Definition from Wiktionary, the free dictionary
|Kanji in this term|
- Foolish it is to ignore that times are changing. Lit. It is pointless to carve a mark on ship where a sword was dropped into the sea, in the hope of finding the sword later near that carving.
- The Kōjien (広辞苑) Dictionary of the Japanese Language, 5th edition, Iwanami Shoten Publishing, Tokyo.