noun, na-adjective
Describes a state or atmosphere free from disturbance, noise, or agitation. Often used for environments, situations, or a person's outward calm.
湖面は平静で、まるで鏡のようだった。
The lake surface was calm, just like a mirror.
彼
He kept talking, feigning calmness.
noun, na-adjective
composure; equanimity; presence of mind
Refers to inner calm and self-control, especially in stressful or emotional situations. Often used with verbs like 保つ or 失う.
どんな時でも平静を保つことが大切だ。
It's important to keep your composure at all times.
彼女は平静さを失わずに質問に答えた。
She answered the questions without losing her composure.