1) Analphabet 2) Illiterate 3) Unlettered 1) Character set 2) Not alphabetic 3) Script 4) Unable to read or write 
[adj] - having little acquaintance with writing 2. [adj] - not alphabetic
analphabetic Not able to read or to write.
unlettered adjective having little acquaintance with writing; `special tutorials to assist the unlettered sector of society`
not alphabetic: an analphabetic arrangement of letters. · unable to read or write; illiterate: analphabetic peoples. · of or constituting a system of phonetic transcription, as the one devised by Otto Jespersen, that for each sound indicates by separate sets of symbols the articulator, the point of articulation, and the size and shape ...