Madisonian UK /ˌmædɪˈsəʊ.ni.ən/US /ˌmædɪˈsoʊ.ni.ən/adjective 1noun 1forms 3 adjective1 •Of or relating to James Madison (1751–1836), fourth president of the United States, hailed as the "Father of the Constitution" for his pivotal role in drafting and promoting the United States Constitution and Bill of Rights. noun1 •A native or inhabitant of Madison, Wisconsin, United States. formsMadisonians · more Madisonian · most Madisonian