analphabet
noun
an·al·pha·bet (ˌ)an-ˈal-fə-ˌbet 
-bət
: a person who cannot read : illiterate
analphabetic
ˌan-ˌal-fə-ˈbe-tik
adjective or noun analphabetism
(ˌ)an-ˈal-fə-bə-ˌti-zəm
noun 
Word History
Etymology
borrowed from New Latin analphabētus, derivative of analphabētus, adjective, "illiterate," borrowed from Greek analphábētos, from an- an- + -alphabētos, derivative of alphábētos alphabet
First Known Use
1881, in the meaning defined above