Translation of "Unstoppable" in Japanese

But no unstoppable change had been triggered.

不可逆的な変化は まだ起こっていませんでした

- If that unstoppable feeling you have for her isn't love, what else is it?
- That unstoppable feeling you have for her is definitely love.

君の彼女への止められない気持ちは、愛でなくて何だろう。

He's unstoppable right now but the question is how long he can remain at the pinnacle of his career.

彼、今のところは飛ぶ鳥も落とす勢いだけれど、あの威勢いつまでもつのか、疑問だね。