His whereabouts have been uncertain for more than two years.

Nan looked uncertain for the first time since the discussion had started.

I'm afraid the future is very uncertain for all of us at present.

In a closing school morale may be low, and the future uncertain for the staff.

Despite the efforts to bring Croats back, the future is uncertain for those who return.

She hung up, and stood uncertain for a moment, hoping there was nothing wrong at home.

As a result, the Miller land titles were uncertain for a number of years.

At this point, the future is uncertain for the station.

"They're too uncertain for my purposes, though; they are all right under certain conditions."

Again his look was uncertain for a moment but then he straightened up.