Suc*cess"ful*ness

from The Collaborative International Dictionary of English v.0.48

Successful \Suc*cess"ful\, a.
   Resulting in success; assuring, or promotive of, success;
   accomplishing what was proposed; having the desired effect;
   hence, prosperous; fortunate; happy; as, a successful use of
   medicine; a successful experiment; a successful enterprise.
   [1913 Webster]

         Welcome, nephews, from successful wars.  --Shak.
   [1913 Webster]

   Syn: Happy; prosperous; fortunate; auspicious; lucky. See
        {Fortunate}.
        [1913 Webster] -- {Suc*cess"ful*ly}, adv. --
        {Suc*cess"ful*ness}, n.
        [1913 Webster]