| Date: | 1600-1700 |
| Language: | Latin |
| Origin: | aequanimitas, from aequo animo 'with level mind' |
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eq‧ua‧nim‧i‧ty
[uncountable]
[uncountable] formal calmness in the way that you react to things, which means that you do not become upset or annoyed :
He received the news with surprising equanimity.
He received the news with surprising equanimity.