illiteracy

noun

1 the ineffective educational system meant that illiteracy was widespread:

illiterateness, inability to read or write.

▷antonyms literacy.

2 his economic illiteracy:

ignorance, unawareness, inexperience, unenlightenment, benightedness, lack of knowledge, lack of education;

informal cluelessness;

literary nescience.

illiteracy Oxford Dictionary of English