Numidian /n(j)uˈmɪdiən/adjective 1noun 1forms 3 adjective1 •Of or pertaining to Numidia or its inhabitants.Underfoot is a rich brown marble from the shores of Lake Champlain. The wainscoting is of green rep and red Numidian marble. — 1923 noun1 •an inhabitant of Numidia formsNumidians · more Numidian · most Numidian