The Collaborative International Dictionary of English v.0.48:

Miserably \Mis"er*a*bly\, adv.
   In a miserable; unhappily; calamitously; wretchedly; meanly.
   [1913 Webster]

         They were miserably entertained.         --Sir P.
                                                  Sidney.
   [1913 Webster]

         The fifth was miserably stabbed to death. --South.
   [1913 Webster]

WordNet (r) 3.0 (2006):

miserably
    adv 1: in a miserable manner; "I bit my lip miserably and
           nodded"

Moby Thesaurus II by Grady Ward, 1.0:

74 Moby Thesaurus words for "miserably":
   abjectly, abominably, agonizingly, arrantly, atrociously, awfully,
   baldly, balefully, basely, bitterly, blatantly, brashly,
   confoundedly, contemptibly, cruelly, damnably, deadly, deathly,
   despicably, deucedly, distressingly, dolorously, dreadfully,
   egregiously, excessively, excruciatingly, execrably, exorbitantly,
   extravagantly, flagrantly, foully, frightfully, grievously,
   grossly, heinously, hellishly, horribly, improperly, inexcusably,
   infernally, inordinately, intolerably, lamentably, meanly,
   monstrously, nakedly, nefariously, obnoxiously, odiously, openly,
   painfully, pettily, piteously, poorly, sadly, scurvily, shabbily,
   shatteringly, shockingly, shoddily, something awful,
   something fierce, sorely, staggeringly, terribly, torturously,
   unashamedly, unbearably, unconscionably, unduly, unpardonably,
   vilely, woefully, wretchedly