fruitless
ineffectual
useless as tits on a boar hog
unproductivity
good-for-nothing
as much use as a chocolate fireguard
good for nothing
unuseful
floccinaucinihilipilificatious
frou-frou
ungainsome
time-waster
nutil
frustraneous
inutilitarian
no good
impertinent
losel
garbageness
upter
nugatory
inutility
unproductively
for the birds
not worth a whistle
incorrigible
unavailing
blivit
futilely
duff
no use
nonworkable
insensible
unprofitably
ineffectualness
waste
improductively
uselessly
bastardly
unserviceable
barren
mug's game
inefficaciously
ineffectively
waste of time
jabberwocky
laoya
offcast
dead
nonfunctional