river prone to flooding; unruly river
Describes a river that frequently overflows its banks, often causing damage. The term carries a personified, somewhat dramatic tone, likening the river to something wild or uncontrollable.
この暴れ川は毎年のように氾濫を起こす。
This unruly river floods almost every year.
暴れ川の治水工事が進められている。
Flood control works are underway for the unruly river.
Compound of 暴れ (abare, 'rampaging', continuative form of 暴れる) and 川 (kawa, 'river'), with rendaku voicing of kawa to gawa. Literally 'rampaging river'.