The Collaborative International Dictionary of English v.0.48:

Leathery \Leath"er*y\, a.
   Resembling leather in appearance or consistency; tough; as,
   nothing but a leathery steak left to eat. "A leathery skin."
   --Grew.
   [1913 Webster]

WordNet (r) 3.0 (2006):

leathery
    adj 1: resembling or made to resemble leather; tough but pliable
           [syn: coriaceous, leathered, leatherlike,
           leathery]