unlettered
adjectiveUK /ʌnˈlɛtəd/
US /ʌnˈlɛtərd/
Not able to read or write.
The old farmer was unlettered but very wise about the land.
OTHER MEANINGS
2. Not having learned much from books or formal study.
He was unlettered in science but skilled at fixing engines.
3. Not marked with letters or writing.
The unlettered sign hung above the shop door.
4. Lacking knowledge of literature and the arts.
Her unlettered taste made the poetry club uneasy.