'Placidness' definitions:
Definition of 'placidness'
From: WordNet
noun
A feeling of calmness; a quiet and undisturbed feeling [syn: placidity, placidness]
Definition of 'Placidness'
From: GCIDE
- Placidness \Plac"id*ness\, n. The quality or state of being placid. [1913 Webster]