Definitions for knavishly
craftily, cunningly, foxily, knavishly, slyly, trickily, artfully(adverb)
in an artful manner
"he craftily arranged to be there when the decision was announced"; "had ever circumstances conspired so cunningly?"
In a knavish manner.
in a knavish manner; dishonestly; fraudulently
mischievously; waggishly; roguishly