Source : Webster's Revised Unabridged Dictionary (1913)

Unread \Un*read"\, a.
   1. Not read or perused; as, an unread book. --Hooker.

   2. Not versed in literature; illiterate. --Dryden.

Source : WordNet®

unread
     adj : not informed through reading; "he seems to have been wholly
           unread in political theory"- V.L.Parrington