千番に一番の兼ね合い

せんばんにいちばんのかねあい

Also written 千番に一番の兼合

Meanings

1. Expression something so difficult that one doesn't know if there's even a 1 in 1000 chance of success

Kanji

• 千 thousand. Read as セン.
• 番 number. Read as バン.
• 一 one. Read as イチ.
• 兼 double as. Read as かねる.
• 合 fit. Read as あい.

Jinuma: Japanese Dictionary · Word lists