Equanimity

{ē-kwə-ˈni-mə-tē}

  1. mental calmness, composure, and evenness of temper, especially in a difficult situation.
  2. calmness; equilibrium.

Examples of equanimity in a sentence:

  • His equanimity allowed him to keep a clear head and escape the burning building.
  • When you are being screamed at for no reason, it is difficult to keep your equanimity.