powerfulness

powerfulness
    n 1: 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}, {powerfulness}] [ant: {impotence}, {impotency},
         {powerlessness}]
    

Powerful \Pow"er*ful\, 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"er*ful*ly}, adv. --
        {Pow"er*ful*ness}, n.
        [1913 Webster]