Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun placidity

2 senses of placidity

Sense 1
placidity, placidness -- (a feeling of calmness; a quiet and undisturbed feeling)
       => calmness -- (a feeling of calm; an absence of agitation or excitement)

Sense 2
repose, quiet, placidity, serenity, tranquillity, tranquility -- (a disposition free from stress or emotion)
       => composure, calm, calmness, equanimity -- (steadiness of mind under stress; "he accepted their problems with composure and she with equanimity")