nerveproof
/ˈnɜrvˌpruːf/Definitions
1. adjective
Having a calm and composed demeanor, especially in the face of criticism or adversity.
“After being roasted by the comedian, Sarah proved to be nerveproof and took it in stride.”
2. adjective
Showing a lack of sensitivity or awareness to the feelings of others.
“His nerveproof response to the emotional situation made everyone uncomfortable.”