equanimity
🇺🇸
/ˌekwəˈnɪməti/
🇬🇧
/ˌekwəˈnɪməti/
remaining calm and not getting upset or angry, even in tough situations
When she was told she had to work late again, she took the news with equanimity.
再び遅くまで働く必要があると告げられたとき、彼女はそのニュースを平静に受け止めた。