bother
underdo
trifle
flea bite
lift a finger
nonbeneficially
carry coals to Newcastle
uneconomically
misendow
play with house money
nuisance
fribble
discommode
unyieldly
non-prerequisite
toy with
picayune
get away with murder
drop in the bucket
neglectable
slight
cut corners
decapacitate
nonaccommodative
unaccommodative
disaccommodate
whistle in the wind
disoblige
trouble
nonproductively
unrepressive
nonrepressive
incommode
neglect
nonefficiency
inconvenience
put out
subefficacious
bugger up
inconsequently
sparely
like a hole in one's head
nit-noid
make a federal case out of something
strikeout
miss
limp
spurn
unincentivized
nonhelpful