A totally ignorant person—unknowledgeable, uneducated, or uninformed; a fool.

(law, dated) A grand jury's ruling on an indictment when the evidence is determined to be insufficient to send the case to trial.

(law, transitive) To make such a ruling against (an indictment).

plural of ignoramus

Third-person singular simple present indicative form of ignoramus

simple past tense and past participle of ignoramus

present participle of ignoramus