He is a man of equable temper―remarkable for his equanimity.
気にむらの無い人だ - 斎藤和英大辞典
capable of accepting delay with equanimity 遅れを落ち着いて受け入れることができる - 日本語WordNet
He has an even temper―a smooth temper―an equable disposition―He is an even-tempered man―remarkable for his equanimity.
彼はいつも心の平らな人だ - 斎藤和英大辞典
he accepted their problems with composure and she with equanimity 彼も、彼女も、冷静に彼らの問題を受け止めた - 日本語WordNet
Now that he was fully convinced, Fix had quite recovered his equanimity.
今や彼には、フィリアス・フォッグが銀行強盗だという確信があった。彼は落ち着きを取りもどしていた。 - JULES VERNE『80日間世界一周』
Holmes had recovered his equanimity, though I still seemed to detect gleams of amusement in his expression.
ホームズは落ち着きを取り戻していたが、それでも表情にはかすかな喜色を浮かべていた。 - Arthur Conan Doyle『ノーウッドの建築家』
Thy equanimity and singleness of purpose, so we might prove thy stalwart and worthy servants in our war against sin. 平静と誠実さの目的 罪の戦いにおいて 汝の忠誠者と僕婢を 証明しよう アーメン! - 映画・海外ドラマ英語字幕翻訳辞書
Original Text: If, when I become a Buddha, the humans and devas of my land do not all firmly abide in a concentrated state of meditation and equanimity (Samadhi) until they have reached nirvana, may I not attain perfect enlightenment.
原文…設我得佛國中人天不住定聚必至滅度者不取正覺 - Wikipedia日英京都関連文書対訳コーパス