nonretractable

from WordNet (r) 3.0 (2006)

nonretractable
    adj 1: not capable of being retracted [syn: {nonretractile},
           {nonretractable}] [ant: {retractile}]

from The Collaborative International Dictionary of English v.0.48

nonretractable \nonretractable\ nonretractile
\nonretractile\adj.
   not able to be drawn into the main body; -- of claws and
   other extensile parts of animals or objects; as, a bear's
   claws, unlike a cat's, are nonretractile. Opposite of
   {retractile}.
   [WordNet 1.5]