unprizable

adjective2

1. •
   (no longer used) Invaluable; whose value is beyond estimation.

   • Shee is a Pearle, that is vnprizable — 1625
2. •
   (no longer used) Not prized or valued; without value; not worth capturing.

   • A bawbling vessel was he captain of, For shallow draught and bulk unprizable — 1601