Upekkhā pāramī : equanimity, serenity
To practice upekkha is to be unwavering or to stay neutral in the face of the eight vicissitudes of life—which are otherwise known as the eight worldly winds or eight worldly conditions: loss and gain, good-repute and ill-repute, praise and censure, and sorrow and happiness (the Attha Loka Dhamma).[1]
The “far enemy” of Upekkha is greed and resentment, mind-states in obvious opposition. The “near enemy” (the quality which superficially resembles upekkha but which subtly opposes it), is indifference or apathy.[2]
Source: https://en.wikipedia.org/wiki/Upekkha