ungewiss Anglais:

It's uncertain if he'll come.

I am uncertain as to whether I am the right person for the job.

an uncertain future

The father is always uncertain.

The weather is uncertain at this time of year.

He is wise who neither hopes nor fears anything from the uncertain future.

I was uncertain of my ability to do it.

Philosophy teaches us to feel uncertain about the things that seem to us self-evident. Propaganda, on the other hand, teaches us to accept as self-evident matters about which it would be reasonable to suspend our judgment or to feel doubt.

He took an uncertain stance.

We had uncertain weather last month.

1. [question word] She's uncertain whether to go to New Zealand or not. / He was uncertain about his brother's intentions.[+about] / They were uncertain of the total value of the transaction.[+of] /2. It's uncertain whether they will accept the plan.

She's uncertain whether to go to New Zealand or not. I'm uncertain about what to do next.

She was uncertain about how much money the trip would cost.

Their participation in the competition is uncertain.