ˈīd( ə )lē, -li adverb
Etymology: Middle English idilly, from Old English īdellīce, from īdel idle + -līce -ly — more at idle
: in an idle manner: as
a. : ineffectually , vainly
b. : lazily , indolently ; broadly : without especial interest or effort : casually
c. obsolete : foolishly , incoherently