stoical
/ˈstoɪkəl/Definitions
1. adjective
having or showing a calm and unemotional attitude in difficult or unpleasant situations
“She was stoical about the news, but it was clear that she was upset.”
2. noun
a person who is able to endure pain or difficulties calmly and without complaint
“The soldier was a stoic on the battlefield, never showing any signs of fear.”