Emily Dickinson Lexicon

STILL'NESS, n.

1. Freedom from noise or motion; calmness; quiet; silence; as, the stillness of the night, the air or the sea.
2. Freedom from agitation or excitement; as, the stillness of the passions.
3. Habitual silence; taciturnity. The gravity and stillness of your youth, / The world hath noted. – Shak.