an illiterate person unfamiliar with the letters of the alphabet
analphabet in American English
(ænˈælfəˌbet, -bɪt)
noun
a person who cannot read or write; illiterate
Word origin
[1660–70; back formation from analphabetic]This word is first recorded in the period 1660–70. Other words that entered Englishat around the same time include: adhesive, aspirate, cantilever, interleave, vocalize