Energetic

energetic
    adj 1: possessing or exerting or displaying energy; "an
           energetic fund raiser for the college"; "an energetic
           group of hikers"; "it caused an energetic chemical
           reaction" [ant: {lethargic}, {unenrgetic}]
    2: working hard to promote an enterprise [syn: {energetic},
       {gumptious}, {industrious}, {up-and-coming}]
    

Energetic \En`er*get"ic\, Energetical \En`er*get"ic*al\, a. [Gr.
   ?, fr. ? to work, be active, fr. ? active. See {Energy}.]
   1. Having energy or energies; possessing a capacity for
      vigorous action or for exerting force; active. "A Being
      eternally energetic." --Grew.
      [1913 Webster]

   2. Exhibiting energy; operating with force, vigor, and
      effect; forcible; powerful; efficacious; as, energetic
      measures; energetic laws.

   Syn: Forcible; powerful; efficacious; potent; vigorous;
        effective; strenuous. -- {En`er*get"ic*al*ly}, adv. --
        {En`er*get"ic*al*ness}, n.
        [1913 Webster]
    

110 Moby Thesaurus words for "energetic":
      active, activist, activistic, acute, aggressive, alive, animated,
      ardent, armipotent, assiduous, authoritative, bouncing, bouncy,
      breezy, brisk, bubbly, chipper, cogent, diligent, dynamic,
      ebullient, effective, effervescent, enterprising, enthusiastic,
      fervent, forceful, forcible, frisky, full of beans, full of go,
      full of life, full of pep, go-go, hard, hardworking, hearty,
      high-potency, high-powered, high-pressure, high-tension, hot,
      impetuous, in force, in power, incisive, indefatigable,
      industrious, intense, invigorated, irresistible, keen, kinetic,
      laborious, live, lively, living, lusty, mercurial, mettlesome,
      mighty, mighty in battle, militant, never idle, operative, peppy,
      perky, pert, potent, powerful, prepotent, puissant, quicksilver,
      relentless, robust, ruling, sedulous, sleepless, smacking, snappy,
      spanking, spirited, sprightly, spry, strenuous, striking, strong,
      take-charge, take-over, telling, tireless, trenchant, unflagging,
      unremitting, unsleeping, unsparing, untiring, unwearied, valid,
      vehement, vibrant, vigorous, vital, vivacious, vivid, zealous,
      zestful, zesty, zingy, zippy