calm; tranquil — a state of being steady and not agitated; used for demeanor or atmosphere.
彼女は突然の知らせにも平静な態度を崩さなかった。
She did not lose her calm even after the sudden news.
平静な表情でその話を聞いた。
He listened to that story with a calm expression.
危機的な状況でも平静を保つことが大切だ。
It's important to keep composure even in a crisis situation.
composure; presence of mind — the ability to remain calm and make decisions without panic.
彼は平静を失って怒鳴り始めた。
He lost his composure and began shouting.
緊急事態でも平静に対処できるよう訓練している。
They train so they can respond calmly even in an emergency.
面接では平静を保って答えることが大切だ。
It's important to answer calmly in an interview.