Stillness /(?)/

Still·ness

Stillness

n.
  1. The quality or state of being still; quietness; silence; calmness; inactivity.
    Painting, then, was the art demanded by the modern intellect upon its emergence from the stillness of the Middle Ages.
    — J. A. Symonds.
  2. Habitual silence or quiet; taciturnity.
    The gravity and stillness of your youth The world hath noted.