devilishly

adverb

1. 1

   (used as intensives) extremely

   she was madly in love

   deadly dull

2. 2

   in a playfully devilish manner

   the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever

3. 3

   as a devil; in an evil manner

   his writing could be diabolically satiric