wingless

from WordNet (r) 3.0 (2006)

wingless
    adj 1: lacking wings [ant: {winged}]

from The Collaborative International Dictionary of English v.0.48

Wingless \Wing"less\, a.
   Having no wings; not able to ascend or fly.
   [1913 Webster]

   {Wingless bird} (Zool.), the apteryx.
      [1913 Webster]