Use the noun peacefulness when you talk about a state of calm or tranquility. Many people feel a sense of peacefulness when they're hiking in the woods.

One kind of peacefulness is quiet and restful, the sort you find at a yoga studio or on an empty stretch of beach. Peacefulness can also refer to an absence of conflict or violence — though it's more common to call this peace. The root of both words is the Latin pacem, which means "peace treaty, tranquility, agreement, or compact."

Definitions of peacefulness
  1. noun
    a state that is calm and tranquil
    synonyms: peaceableness
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    a state of being appeased or ameliorated or tempered
    type of:
    a state of friendship and cordiality
  2. noun
    the absence of mental stress or anxiety
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