1. The capacity to suppress outwards signs or expressions of suffering or pain, either emotional or physical as an act of inner strength or to appear to possess strength of character.
NOTE: Gamman is a Japanese cultural trait and is considered untranslatable.
noun: Caleb mustered gamman to not shed a tear when the doctor gave his dislocated shoulder a quick yank.
Travis used gamman to maintan a stiff upper lip when his girlfriend confessed to being unfaithful to him.