This setting, the tenseness of the scene, made flexible features stiffen.

Margo saw the way in which Stan's features stiffened, only to relax into what could be termed their usual hardness.

Her features stiffened into lines of hauteur.

The butler's features stiffened into cold disapproval, but all he said was, "I will see that she is informed.

His strained half-smile was weary, but his features stiffened with a mask of discernible dignity.

These features stiffen the saw so the blade cuts an absolutely straight line without flexing.

Hagan turned and his features stiffened when he saw Fenn.

For the first time Luke's features stiffened to hardness, or even harshness.

But when he looked at his automatic altimeter and read an altitude of 175 miles, his features stiffened.

His features stiffened with fury.