self-possessed
🇺🇸
/ˌself pəˈzest/
🇬🇧
/ˌself pəˈzest/
Staying calm and in control of your feelings, even in difficult situations.
Despite the chaos around her, she remained self-possessed and focused on the task at hand.
周りの混乱にもかかわらず、彼女は冷静で臨機応変であり、手元の任務に集中していました。