The Collaborative International Dictionary of English v.0.48:

Needless \Nee"dless\, a.
   1. Having no need. [Obs.]
      [1913 Webster]

            Weeping into the needless stream.     --Shak.
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   2. Not wanted; unnecessary; not requisite; as, needless
      labor; needless expenses.
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   3. Without sufficient cause; groundless; causeless. "Needless
      jealousy." --Shak.
      [1913 Webster] -- Need"less*ly, adv. --
      Need"less*ness, n.
      [1913 Webster]