illiterate

A high number of pupils at the secondary school are "functionally illiterate", meaning they have a reading age well below average when they start Year 7.

In the novel, Franklin D. Roosevelt loses the Democratic presidential nomination to Buzz Windrip, who is described as “vulgar, almost illiterate, a public liar easily discredited,” but wins the election in a landslide.

Only the math illiterate would continue to present this as a mandate.

You would have to be culturally illiterate to be unfamiliar with Michael Jordan.

And, it added, the savings Texas sought were “wholly insubstantial in light of the costs involved to these children, the State, and the Nation” of creating “a subclass of illiterates within our boundaries.”