from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Incapable of flying. Used of certain birds, such as the penguin.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Unable to fly. Usually used with birds such as the penguin, ostrich, and emu.

from The Century Dictionary and Cyclopedia

  • Incapable of flying.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. incapable of flying


From flight +‎ -less. (Wiktionary)



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