The sheer impossibility of the thing was only part of the problem it presented.

The sheer impossibility of escaping the city made him smile.

The sheer impossibility of understanding this system protected their information.

He had seen a thing only the gods should see and the sheer impossibility of it pushed him through fear into the still place beyond.

She tried to shake off the feelings but it was sheer impossibility and he smiled down at her.

A belief which was a sheer impossibility for any adult to live up to.

His brain seemed to be frozen by the sheer impossibility of what must have happened.

They say the Whites are still there, but that's a sheer impossibility.

Such an idea was a sheer impossibility for Luther.

And anyway it's a sheer impossibility that Armstrong can be in the house.