Meaning : As a devil. In an evil manner.
Example :
His writing could be diabolically satiric.
Synonyms : diabolically, fiendishly
Meaning : In a playfully devilish manner.
Example :
The socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever.
Synonyms : devilish
Devilishly meaning in Bengali (Bangla).