equanimity
/ˌiːkwəˈnɪmətɪ/noun
mass noun
- mental calmness, composure, and evenness of temper, especially in a difficult situation（尤指面对困境时的）平和, 镇静, 泰然：
she accepted both the good and the bad with equanimity.
是好是坏, 她都坦然接受。
派生词
equanimous
/ɪˈkwænɪməs/ adjective词源
early 17th cent. （also in the sense 'fairness, impartiality'）： from Latin aequanimitas, from aequus 'equal' + animus 'mind'.