WordNet (r) 3.0 (2006):

unashamedly
    adv 1: without shame; "he unashamedly abandoned the project when
           he realized he would not gain from it" [syn:
           unashamedly, shamelessly, barefacedly] [ant:
           ashamedly]

Moby Thesaurus II by Grady Ward, 1.0:

64 Moby Thesaurus words for "unashamedly":
   abominably, agonizingly, awfully, baldly, balefully, bitterly,
   blatantly, brashly, confoundedly, cruelly, damnably, deadly,
   deathly, deucedly, distressingly, dolorously, dreadfully,
   egregiously, excessively, excruciatingly, exorbitantly,
   extravagantly, flagrantly, frightfully, grievously, hellishly,
   horribly, impenitently, improperly, inexcusably, infernally,
   inordinately, intolerably, lamentably, miserably, nakedly, openly,
   painfully, piteously, remorselessly, sadly, shamelessly,
   shatteringly, shockingly, something awful, something fierce,
   sorely, sorrowlessly, staggeringly, terribly, torturously,
   unbearably, unconscionably, unduly, unpardonably, unregretfully,
   unremorsefully, unruefully, without any qualms,
   without compunction, without looking back, without regret,
   without remorse, woefully