Illiterate \Il*lit"er*ate\, a. [L. illiteratus: pref. il- not + literatus learned. See {In-} not, and {Literal}.] Ignorant of letters or books; unlettered; uninstructed; uneducated; as, an illiterate man, or people. Syn: Ignorant; untaught; unlearned; unlettered; unscholary. See {Ignorant}. -- {Il*lit"er*ate*ly}, adv. -- {Il*lit"er*ate*ness}, n.