placidity

Latin placiditās (“mildness, placidity”).

• (US) IPA^(key): /pləˈsɪd.ə.ti/

placidity (usually uncountable, plural placidities)

1. The state of being placid; peacefulness.
   • 1815, Jane Austen, Emma, volume III, chapter 10:

     And how could she bear such behaviour! Composure with a witness! to look on, while repeated attentions were offering to another woman, before her face, and not resent it.—That is a degree of placidity, which I can neither comprehend nor respect.

• (state of being placid): composure, peacefulness, serenity

• placid
• placidly
• placidness