ryzykowny niepewny in English:

It was touch and go whether we would get to the airport in time

We weren't sure if she'd survive the accident. It was touch and go for a long time but eventually she got better.

There's no room for any touch and go investments in this business.

unpredictable as to outcome, possible but very uncertain It was touch and go whether we'd go bankrupt. I don't know for sure. It's a bit touch-and-go at the moment.