serenity

noun

The state or quality of being serene.

The quality or condition of being serene; clearness; calmness; quietness; stillness; peace.

Calmness of mind; tranquillity of temper; placidity.

A title of dignity or courtesy given to certain princes and high dignitaries. It is an approximate translation of the German Durchlaucht, more commonly rendered Serene Highness. See serene, 3.

The quality or state of being serene; clearness and calmness; quietness; stillness; peace.