The state of being illiterate, or uneducated; want of learning, or knowledge; ignorance; specifically, inability to read and write; as, the illiteracy shown by the last census.
- The condition of being unable to read and write.
- An error, as in writing or speech, made by or thought to be characteristic of one who is illiterate. See Usage Note at literate.
- The condition or quality of being ignorant or unknowledgeable in a particular subject or field: cultural illiteracy; scientific illiteracy.