Addisonian UK /ˌædɪˈsəʊ.ni.ən/US /ˌædɪˈsoʊ.ni.ən/ adjective2 •Of or relating to Addison's disease. •Of or relating to Joseph Addison (1672–1719), English writer and politician.What goes down with them and with the public is a bit of sensational realism told in terse newspaper English. Literary English,—Addisonian English,—is a mistake. — 1895 formsmore Addisonian · most Addisonian