やまない

doesn't stop, doesn't let up

→ 止む
やま stop, let up, die down + ない Negation
verb Rare #41,241
doesn't stop, doesn't let up Used here for rain or snow that continues.
JA: 雨がやまない。
EN: The rain isn't letting up.
Conjugation of 止む
Indicative present
Present
Past
Indicative past
やまない止んで

雨はやまないと思うよ。

I don't think the rain will stop.

「雨はすぐやむかな」「やまないと思うよ」

“Do you think the rain will stop soon?” “I don’t think it will.”

当分やまない

It won’t stop for a while.

— 花様年華 (2000)

雪がやまないね。

The snow just won't stop, will it?