Synonyms of devilishly

Adverb

1. diabolically, devilishly, fiendishly

usage: as a devil; in an evil manner; "his writing could be diabolically satiric"

2. devilishly, devilish

usage: in a playfully devilish manner; "the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever"

3. madly, insanely, deadly, deucedly, devilishly

usage: (used as intensives) extremely; "she was madly in love"; "deadly dull"; "deadly earnest"; "deucedly clever"; "insanely jealous"