/ˈfɔːtɪˌtjuːd/

 If you say that someone has shown fortitude, you admire them for being brave, calm, and uncomplaining when they have experienced something unpleasant or painful. 刚毅 [正式]

例:

He suffered a long series of illnesses with tremendous dignity and fortitude.

他在病魔的长久折磨下表现出了高度的尊严和刚毅。