[1] : The Collaborative International Dictionary of English v.0.48

powerful \pow"erful\, a.
   1. full of power; capable of producing great effects of any
      kind; potent; mighty; efficacious; intense; as, a powerful
      man or beast; a powerful engine; a powerful argument; a
      powerful light; a powerful vessel.
      1913 webster

            the powerful grace that lies
            in herbs, plants, stones, and their true qualities.
                                                  --shak.
      1913 webster

   2. mining large; capacious; -- said of veins of ore.
      1913 webster

   syn: mighty; strong; potent; forcible; efficacious;
        energetic; intense.
        1913 webster -- pow"erfully, adv. --
        pow"erfulness, n.
        1913 webster
see also:
pow"erfully pow"erfulness 

[2] : WordNet (r) 2.0

powerfulness
     n : possession of controlling influence; "the deterrent power of
         nuclear weapons"; "the power of his love saved her"; "his
         powerfulness was concealed by a gentle facade" syn: power
         ant: powerlessness, powerlessness
see also:
power powerlessness 

Powerfulness >> P Words
Powerfulness, definition of term: Powerfulness
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