unlettered adj 1: having little acquaintance with writing; "special tutorials to assist the unlettered sector of society" [syn: {analphabetic}] 2: lacking general education or knowledge; "an ignorant man"; "nescient of contemporary literature"; "an unlearned group incapable of understanding complex issues"; "exhibiting contempt for his unlettered companions" [syn: {ignorant}, {nescient}, {unenlightened}, {unlearned}]