unreconstructed

unreconstructed /ˌʌnˌriːkənˈstrʌktəd/ adjective
unreconstructed
/ˌʌnˌriːkənˈstrʌktəd/
adjective
Britannica Dictionary definition of UNRECONSTRUCTED
— used to describe someone who has strongly held opinions and beliefs that have not changed even though they have been criticized or have become unpopular