back to the drawing board
back to square one
successlessly
in vain
defeated
thwarted
frustrated
disappointed
discomfited
foiled
luckless
unsuccessfully
unsucceeding
unavailingly
attempted
postfailure
skip a beat
swing and a miss
unsuccessful
fail
go wrong
miscarry
nonresumption
nonreturn
like rats from a sinking ship
to no avail
misfire
nonconsequence
beginningless
rechallenge
boomerang
turkey
unsuccess
nonconcluding
done for
unsucceeded
essay
miss the mark
unlast
lapse
postflop
fall down
nonsuccess
waver
nonfailure
halt
go out
go down the toilet
fat chance
virtueless
unflourishing
baffle
revirginate
dead in the water
successlessness
forlorn
unthrive
blown
nonembarkation
unattainment
presentient
slim chance
fall flat on one's face
scrape
unprogress
solutionlessness
dead on the vine
hiccup
unadvancement
strike out looking
blow
vainly
unresumed
done
failed
recessive
manage
nonretrenchment
all is not lost
fight a losing battle
downstat
let the grass grow under one's feet
resile
wither on the vine
bland
failure
insoluble
fall down on
nonsuccessful
unrevivably