infamously

Infamously \In"fa*mous*ly\, adv.
   In an infamous manner or degree; scandalously; disgracefully;
   shamefully.
   [1913 Webster]

         The sealed fountain of royal bounty which had been
         infamously monopolized and huckstered.   --Burke.
   [1913 Webster]
    

63 Moby Thesaurus words for "infamously":
      abominably, atrociously, awfully, basely, bestially, brutally,
      contemptibly, criminally, crookedly, deceitfully, despicably,
      detestably, deviously, discreditably, disgustingly, dishonestly,
      dishonorably, disreputably, dreadful, dreadfully, dubiously,
      egregiously, evasively, feloniously, fishily, flagrantly, foully,
      fraudulently, fulsomely, grossly, horribly, horridly,
      ignominiously, ingloriously, insidiously, knavishly, loathsomely,
      nastily, nauseatingly, notoriously, obnoxiously, odiously,
      offensively, outrageously, roguishly, savagely, scandalously,
      shabbily, shamefully, shiftily, shockingly, something fierce,
      sordidly, suspiciously, terribly, unconscientiously, underhandedly,
      unrespectably, unscrupulously, viciously, vilely, villainously,
      wretchedly