half-read

half- +‎ read

half-read (not comparable)

1. Partly read.

   I put down my half-read book and went outside.

2. (obsolete) Inadequately or superficially educated by reading.
   • (Can we date this quote by John Dryden and provide title, author's full name, and other details?)

     The clown unread, and half-read gentleman