The whole idea of open country was completely unknown to them; they were forest folk.
How, after all, do you train to face a completely unknown world?
A completely unknown type of civilization must have developed itself here.
They faced a completely unknown future by following this course.
He was in command of a crew who were completely unknown to him.
It has its own electrical power plant, and is completely unknown to the rest of the world.
He could be a shadowy figure completely unknown to the public at large, and it would make no difference.
On 3 May the team passed into completely unknown land.
It wasn't as though the murder victim was completely unknown.
It is clear that the long-term effects of this process are completely unknown.
