Carolinian /ˌkæɹəˈlɪniən/adjective 3noun 2forms 1 adjective3 •Of, or pertaining to, the Carolinas (North Carolina or South Carolina). •Of, or pertaining to, the Caroline Islands. •Synonym of Carolingian. noun2 •A native or inhabitant of the Carolinas (North Carolina or South Carolina). •A native or inhabitant of the Caroline Islands. formsCarolinians