UNLETTERED

ignorant, nescient, unlearned, unlettered

(adjective) uneducated in general; lacking knowledge or sophistication; “an ignorant man”; “nescient of contemporary literature”; “an unlearned group incapable of understanding complex issues”; “exhibiting contempt for his unlettered companions”

analphabetic, unlettered

(adjective) having little acquaintance with writing; “special tutorials to assist the unlettered sector of society”

Source: WordNet® 3.1

Etymology

Adjective

unlettered (not comparable)

not instructed in letters; not well educated; unable to read

not expressed in or marked with letters

Source: Wiktionary