tranquillity Meaning, Definition & Usage

  1. noun an untroubled state; free from disturbances
    tranquility; quiet.
  2. noun a state of peace and quiet
    quietness; tranquility; quietude.
  3. noun a disposition free from stress or emotion
    tranquility; quiet; repose; serenity; placidity.

WordNet

Tran*quil"li*ty noun
Etymology
F. tranquillité, L. tranquillitas.
Definitions
  1. The quality or state of being tranquil; calmness; composure.

Webster 1913