equanimity
noun/ˌekwəˈnɪməti/
/ˌekwəˈnɪməti/
[uncountable] (formal)- a calm state of mind that means that you do not become angry or upset, especially in difficult situations
- She accepted the prospect of her operation with equanimity.
Word Originearly 17th cent. (also in the sense ‘fairness, impartiality’): from Latin aequanimitas, from aequus ‘equal’ + animus ‘mind’.
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equanimity