Evenness of mind; that calm temper or firmness of mind which is not easily elated or depressed; patience; calmness; composure; as, to bear misfortunes with equanimity.

steadiness of mind under stress; "he accepted their problems with composure and she with equanimity"

The ability to maintain a spacious impartiality of mind in the midst of life’s changing conditions. A state of balance or poise; a radiant calm of mind or spacious stillness of heart.

A profound quality of mindfulness that cultivates the ability to let go and acknowledge that things are as they are, a sense of non reactivity or evenness of mind especially when challenged with difficult emotions. Not overvaluing one experience over another but also not indifference.

Unbiasedness. State of MIND in which one does not distinguish between friend, enemy and stranger.

Absence of the usual discrimination of sentient beings into friend, enemy and stranger, deriving from the realization that all sentient beings are equal in wanting happiness and not wanting suffering and that since beginningless time, all beings have been all things to each other. An impartial mind that serves as the basis for the development of great love, great compassion and bodhicitta.