1. the quality or state of being calm, peaceful, and undisturbed

Examples

• The placidity of the lake’s surface reflected the clear blue sky.
• Her placidity in stressful situations made her an excellent crisis manager.
• The old dog’s placidity was comforting to the anxious children.
• Despite the chaos around him, he maintained an air of placidity.
• The placidity of rural life appealed to the retired couple.
• His placidity sometimes frustrated his more energetic colleagues.