ignoramus /ˌɪɡ.nəˈɹeɪ.məs/noun 2verb 1forms 4 noun2 •A totally ignorant person—unknowledgeable, uneducated, or uninformed; a fool.The problem is that visual ignoramuses, such as this writer, can't think of that many pictures and end up drawing question marks where a frog should be. — 2006 •(old-fashioned) A grand jury's ruling on an indictment when the evidence is determined to be insufficient to send the case to trial. verb1 •To make such a ruling against (an indictment). formsignoramused · ignoramusing · ignoramuses · ignorami