placidity
1. [ noun ] a feeling of calmness; a quiet and undisturbed feeling
Synonyms: placidness
Related terms: calmness
2. [ noun ] a disposition free from stress or emotion
Synonyms: serenity tranquility quiet tranquillity repose
Related terms: composure ataraxia calm
Similar spelling:   placid
  placidyl
  placidly
  placoid
  Placide
  playact
  placed
  playacting
  placidness
  plucked
  pleased
  Placodermi