It was intensely dark, and he was unfamiliar with the specific controls of the vehicle.

The night was intensely dark, and he knew from his own moving around that a man could move easily and make no sound.

With no access to daylight, the interior stairwell was intensely dark.

It was still raining and intensely dark, but the wind had dropped.

The night was misty and intensely dark, without moon or stars.

At first it was intensely dark as they spiraled down.

He had intensely dark eyes that appeared to be all pupil.

It was intensely dark, so he was forced to rely on his other senses.

They don't flourish well in intensely dark areas, but some like light shade more than full sun.

The intensely dark areas that occupy a large proportion of the painting's surface play a big part in the drama.