noun a stupid, ignorant person; a vain pretender to knowledge; a dunce.
2. ignoramus ·noun we are ignorant; we ignore;
being the word formerly written on a bill of indictment by a grand jury when there was not sufficient evidence to warrant them in finding it a true bill. the phrase now used is, "no bill," "no true bill," or "not found," though in some jurisdictions "ignored" is still used.