Both men nodded with an almost imperceptible movement of the head.

An imperceptible movement of the blind man's knife turned aside the blow.

Then followed a slight and almost imperceptible sidelong movement of the head.

I caught the almost imperceptible movement and turned to look at him instead of the window.

When this imperceptible movement was completed, sharp eyes peered into the room.

With an almost imperceptible movement of her mouth, she said, "Thank you."

The animals began to migrate, an almost imperceptible movement in the beginning but one that increased each day.

The torch showed her the imperceptible movement of the water flowing past this point.

There was an almost imperceptible movement at the side of the ruined portal.

The star slipped forward - there was an almost imperceptible movement of its side points.