An illiterate person, one either not able to read and write or not knowing how.
A person ignorant about a given subject.
Unable to read and write.
Not conforming to prescribed standards of speech or writing.
Having less than an expected standard of familiarity with language and literature, or having little formal education.
Ignorant in a specified way or about a specified subject.
Those who are illiterate or unlearned.
Those who cannot read and write Latin.