placidity
平穩,平靜,溫和
Pla·cid·i·ty n. The quality or state of being placid; calmness; serenity.
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placidity
n 1: a feeling of calmness; a quiet and undisturbed feeling [syn:
placidness]
2: a disposition free from stress or emotion [syn: repose, quiet,
serenity, tranquillity, tranquility]