collapsible

from WordNet (r) 3.0 (2006)

collapsible
    adj 1: capable of collapsing or being collapsed; "a collapsible
           boat" [syn: {collapsible}, {collapsable}] [ant:
           {noncollapsable}, {noncollapsible}]

from The Collaborative International Dictionary of English v.0.48

collapsible \collapsible\ adj.
   Capable of collapsing or being collapsed; as, a collapsible
   boat. [Narrower terms: {telescopic}; {tip-up}] Also See:
   {folded}. Antonym: {noncollapsible}.

   Syn: collapsable.
        [WordNet 1.5]