As a result, the weather has become unpredictable and dangerous.

"In nearly all respects, the situation there has become more volatile and unpredictable."

The world some professors thought they understood has become increasingly unpredictable.

The results of the approaching national vote have become even more unpredictable.

"We may have to leave quickly, now that Dyson has become unpredictable."

But while the lawn-care rule still holds, school budget votes have become much more unpredictable.

In Haiti, though, hurricanes are becoming more frequent and unpredictable.

"After his father is buried," he added, "the situation risks becoming extremely unpredictable."

With the sudden shift of wind, the storm had become more unpredictable.

The ride and travel time is becoming unpredictable because of all the accidents.