Definition of 千番に一番の兼ね合い (せんばんにいちばんのかねあい)

せんばんいちばん

千番に一番の兼ね合い

せんばんにいちばんのかねあい

senbanniichibannokaneai

expression
something so difficult that one doesn't know if there's even a 1 in 1000 chance of success(obscure)
Other readings:
千番に一番の兼合【せんばんにいちばんのかねあい】
Related Kanji
thousand
turn, number in a series
one, one radical (no.1)
concurrently, and, beforehand, in advance
fit, suit, join, 0.1