1) Calm 2) Calm way with ailment 3) Calmness without winds 4) Complete lack of motion 5) Hush 6) Quiet 7) Silence 8) Still 9) The absence of motion 10) Total calm 11) Tranquil silence, calmness Found on https://www.crosswordclues.com/clue/stillness
Still'ness noun 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 ... Found on http://www.encyclo.co.uk/webster/S/198