expression
not a chance; that's not going to happen; that won't work
Colloquial expression dismissing a suggestion or expectation as impossible or unrealistic. Often used in casual conversation.
そんなに簡単に勝てると思ってるの?そうはいかないよ。
You think you can win that easily? Not a chance.
明日までに全部終わらせるなんて、そうはいかない。
There's no way we can finish everything by tomorrow.