An illiterate person, one not able to read and write.
A person ignorant about a given subject.
The government is run by business illiterates.
Unable to read and write.
Having less than an expected standard of familiarity with language and literature, or having little formal education.
Not conforming to prescribed standards of speech or writing.
Ignorant in a specified way or about a specified subject.
economically illiterate, emotionally illiterate