unresigned
/ˌʌnriˈsaɪnd/Definitions
1. adjective
refusing to give up or yield; stubbornly determined
“The unresigned activist continued to fight for her cause, even in the face of opposition.”
2. noun
a person who refuses to give up or yield; a stubbornly determined person
“The unresigned protesters marched through the city, demanding change.”