say it: DEV-uh-lish-lee
devilishly is an adverb meaning "as a devil; in an evil manner". It carries 3 recorded senses.
as a devil; in an evil manner
“his writing could be diabolically satiric”
in a playfully devilish manner
“the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever”
(used as intensives) extremely
“she was madly in love”
“deadly dull”
“deadly earnest”
“deucedly clever”
“insanely jealous”
intensifier
Definitions, synonyms and semantic relations for devilishly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.