Mind that could shape its content into a completely unnatural effort.

Because of their completely unnatural backbones, Morpholinos are not recognized by cellular proteins.

It would seem to be a completely unnatural thing to do.

This divorce of art from technology is completely unnatural.

What would have seemed completely unnatural behaviour had now become almost second nature to her.

The life of a battery animal is highly stressed and completely unnatural.

It was quite beautiful, but wholly and completely unnatural.

'Dirty' things become completely unnatural, and you avoid them.

The river was rising with completely unnatural speed, making for unsteady going.

Yet this was something that seemed completely unnatural to him.