uselessly
pointlessly
worthlessly
senselessly
ineffectively
inefficaciously
futilely
unproductively
unprofitably
fruitlessly
inalienably
wronglessly
meaninglessly
unnecessarily
mindlessly
impalpably
faultlessly
needlessly
inapproachably
useless as tits on a boar hog
ineffectual
impassively
powerlessly
nonproductively
unambitiously
garbageness
ineffectually
cluelessly
unfashionably
unrequitedly
unviably
immitigably
unassignably
inanimately
formlessly
unworthily
uncleverly
uneventfully
unadvisedly
redundantly
unambiguously
unsociably
inaudibly
inarticulately
unequivocally
inapplicably
inadequately
unctuously
meritlessly
fulsomely