unfilled

from WordNet (r) 3.0 (2006)

unfilled
    adj 1: of purchase orders that have not been filled [ant:
           {filled}]

from The Collaborative International Dictionary of English v.0.48

Unfilled \Unfilled\
   See {filled}.

from Moby Thesaurus II by Grady Ward, 1.0

36 Moby Thesaurus words for "unfilled":
      abandoned, available, deserted, dog-hungry, empty, famished,
      famishing, fasting, forsaken, free, godforsaken, half-famished,
      half-starved, hungering, hungry, open, peckish,
      pinched with hunger, ravening, ravenous, sharp-set, starved,
      starving, tenantless, uninhabited, unmanned, unoccupied, unpeopled,
      unpopulated, unstaffed, untaken, untenanted, untended, vacant,
      voracious, wolfish