nonextant

from WordNet (r) 3.0 (2006)

nonextant
    adj 1: no longer in existence; lost or especially having died
           out leaving no living representatives; "an extinct
           species of fish"; "an extinct royal family"; "extinct
           laws and customs" [syn: {extinct}, {nonextant}] [ant:
           {extant}]
    2: no longer existing or inaccessible through loss or
       destruction; "its nonextant original was written on vellum"-
       G.B.Saul

from The Collaborative International Dictionary of English v.0.48

nonextant \nonextant\ adj.
   No longer existing; inaccessible through loss or destruction.
   [WordNet 1.5]

         Its nonextant original was written on vellum --G. B.
                                                  Saul