The doors were wide open and the interior of the mosque was impenetrably dark in contrast to the bright sunlight without.

The rushlight had burned out and the cell was impenetrably dark.

By contrast with the brilliancy outside, it seemed at first impenetrably dark to me.

Nyberg gestured out to the forest, impenetrably dark beyond the spotlights.

It was a symbol that the world need not always be the impenetrably dark place it has often been.

His eyes were masked with impenetrably dark sunglasses.

It was dark in there, impenetrably dark, and the door closed behind her, soft and airtight.

Even when a night looks impenetrably dark, a tiny amount of infrared light, outside the range of human vision, is coming from the moon and stars.

Beyond its ruddy gleam everything looked by contrast impenetrably dark.

The passage was dark, and, by contrast with the picture the window frame enclosed, the side of the room seemed impenetrably dark.