nonreturnable

from WordNet (r) 3.0 (2006)

nonreturnable
    adj 1: that may not be returned; "nonreturnable bottles cannot
           be exchanged for a deposit"; "sale merchandise is
           nonreturnable" [ant: {returnable}]

from The Collaborative International Dictionary of English v.0.48

nonreturnable \nonreturnable\ adj.
   That may not be returned for a refund; -- of purchased goods,
   or containers for purchased items; as, nonreturnable bottles.
   Opposite of {returnable}.
   [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

33 Moby Thesaurus words for "nonreturnable":
      changeless, constant, immutable, incommutable, inconvertible,
      indefeasible, inert, insusceptible of change, intransmutable,
      invariable, irretrievable, irreversible, irrevocable, lasting,
      noble, nonreversible, permanent, reverseless, unalterable,
      unalterative, unaltered, unchangeable, unchanged, unchanging,
      undeflectable, undeviating, unmodifiable, unremitting,
      unrestorable, unreturnable, unsusceptible, unvariable, unvarying

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