1. in a calm, composed, and even-tempered manner; without being disturbed or losing one's composure in the face of adversity
She accepted the bad news with equanimity and began planning her next steps.
Ela aceitou a má notícia com equanimidade e começou a planejar seus próximos passos.
2. with mental calmness and balance, especially when dealing with difficult or stressful situations
He faced the challenges with equanimity, refusing to let emotions cloud his judgment.
Ele enfrentou os desafios com equanimidade, recusando-se a deixar as emoções nublarem seu julgamento.