zan-zan
A fierce, unrelenting rainstorm drenching everything. Emphasizes the persistent, punishing nature of the rain.
💡Getting caught in a storm — 'We got soaked because it was raining zan-zan.'
ざんざん降りの雨でずぶ濡れになった。
We got drenched in the zan-zan downpour.
It was raining ___ and we were soaked through in seconds.
○○降りの雨で、あっという間にずぶ濡れになった。