unmerchantable

from WordNet (r) 3.0 (2006)

unmerchantable
    adj 1: not fit for sale [syn: {unmarketable}, {unmerchantable},
           {unvendible}]

from The Collaborative International Dictionary of English v.0.48

Unmerchantable \Un*mer"chant*a*ble\, a. (Com.)
   Not merchantable; not fit for market; being of a kind,
   quality, or quantity that is unsalable. --McElrath.
   [1913 Webster]