Vigorous \Vig"or*ous\, a. [Cf. OF. vigoros, F. vigoureux, LL.
   vigorosus.]
   1. Possessing vigor; full of physical or mental strength or
      active force; strong; lusty; robust; as, a vigorous youth;
      a vigorous plant.
      
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            Famed for his valor, young,
            At sea successful, vigorous and strong. --Waller.
      
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   2. Exhibiting strength, either of body or mind; powerful;
      strong; forcible; energetic; as, vigorous exertions; a
      vigorous prosecution of a war.
      
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            The beginnings of confederacies have been always
            vigorous and successful.              --Davenant.
      
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 -- {Vigor*ous*ly}, adv. --
      {Vigor*ous*ness}, n.
      
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