Trumpian /ˈtɹʌmpɪən/adjective 1noun 1forms 3 adjective1 •Resembling or pertaining to the philosophy, rhetoric, and style of Donald Trump.Operating in a command climate of Trumpian instability, the most senior and public White House officials are party to profoundly destabilizing acts. — 2017 noun1 •A political supporter of Donald Trump. formsTrumpians · more Trumpian · most Trumpian