a. 1. Literate; educated; versed in literature. “ Are you not lettered?” Shak. [ 1913 Webster ]
The unlettered barbarians willingly accepted the aid of the lettered clergy, still chiefly of Roman birth, to reduce to writing the institutes of their forefathers. Milman. [ 1913 Webster ]
2. Of or pertaining to learning or literature; learned. “ A lettered education.” Collier. [ 1913 Webster ]
3. Inscribed or stamped with letters. Addison. [ 1913 Webster ]
(adj) uneducated in general; lacking knowledge or sophistication, Syn. nescient, unlettered, unlearned, Example:an ignorant man; nescient of contemporary literature; an unlearned group incapable of understanding complex issues; exhibiting contempt for his unlettered companions
(adj) highly educated; having extensive information or understanding, Syn. lettered, learned, knowledgeable, well-educated, well-read, Example:knowing instructors; a knowledgeable critic; a knowledgeable audience
[吴下阿蒙 / 吳下阿蒙, Wú xià ā Méngㄨˊ ㄒㄧㄚˋ ㄚ ㄇㄥˊ] General Lü Meng 呂矇|吕蒙 of the southern state of Wu (成语 saw); model of self-improvement by diligent study (from unlettered soldier to top strategist of Wu), See Also: 呂矇, 吕蒙, 成语