All these actions led to an extremely unstable reactor configuration.

Between 1963 and 1965, South Vietnam was extremely unstable as no government could keep power for long.

The market has been extremely unstable in the last few days.

They were extremely unstable due the long overhang at each end.

"The issue is the fact that we have an extremely unstable building."

The situation was extremely unstable back then, and in many ways it still is.

Even after his release, he continued to be extremely unstable.

Ozone is extremely unstable and must be produced on site.

At that time, the political climate in Manchukuo was extremely unstable.

The years from 1871 to 1914 would be marked by an extremely unstable peace.