Harm"ful*ly

from The Collaborative International Dictionary of English v.0.48

Harmful \Harm"ful\ (h[aum]rm"f[.u]l), a.
   Full of harm; injurious; hurtful; mischievous. " Most harmful
   hazards." --Strype. --{Harm"ful*ly}, adv. -- {Harm"ful*ness},
   n.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

39 Moby Thesaurus words for "harmfully":
      balefully, banefully, corrodingly, corrosively,
      counterproductively, damagingly, deleteriously, detrimentally,
      disadvantageously, disserviceably, hatefully, hurtfully, in spite,
      iniquitously, injuriously, invidiously, malefically, maleficently,
      malevolently, maliciously, malignantly, malignly, meanly,
      mischievously, nastily, noisomely, noxiously, ornerily,
      poisonously, prejudicially, spitefully, toxically, venomously,
      viciously, virulently, wickedly, with bad intent,
      with malice aforethought, with malice prepense