fiendishly

from WordNet (r) 3.0 (2006)

fiendishly
    adv 1: as a devil; in an evil manner; "his writing could be
           diabolically satiric" [syn: {diabolically}, {devilishly},
           {fiendishly}]

from The Collaborative International Dictionary of English v.0.48

Fiendish \Fiend"ish\, a.
   Like a fiend; diabolically wicked or cruel; infernal;
   malignant; devilish; hellish. -- {Fiend"ish*ly}, adv. --
   {Fiend"ish*ness}, n.
   [1913 Webster]

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