文盲 (wén máng): ไม่รู้หนังสือ

He never went to school as a child, and by the age of thirty he was still illiterate, unable even to write his own name.

This village is remote, and many elderly people are illiterate, so volunteers came specifically to teach them to read and do accounts.

The government launched a literacy campaign to enable those who are illiterate to read books and newspapers and integrate better into society.

With the popularization of compulsory education, the proportion of illiterate people among the new generation has dropped significantly.