Unlettered (adjective)

1. Not having knowledge of or ability to read or write.
2. Lacking education or formal schooling.

Origin:

Derived from the word 'letter' meaning a written character or symbol representing a speech sound in an alphabet.

Examples:

1. The illiterate farmer was unlettered and could not read the instructions on the seed packet.
2. The tribal elder was unlettered and passed down his culture's traditions orally.
3. The migrant worker was unlettered and unable to fill out job applications.
4. The unschooled artist was unlettered but had a natural talent for creating beautiful paintings.
5. The nomadic herder was unlettered but had a deep knowledge of the land and its seasons.