an·al·pha·bet·ic 
(ăn-ăl′fə-bĕtĭk)
(ăn-ăl′fə-bĕtĭk)adj.
1. Not alphabetical.
2. Unable to read; illiterate.
n.
One who is unable to read; an illiterate.
[From Greek analphabētos, not knowing the alphabet : an-, not; see A-1 + alphabētos, alphabet; see ALPHABET.]