mis-
lay an egg
bite the big one
fall flat on one's face
fall down
go out
go down the toilet
waver
scantle
let the grass grow under one's feet
backfire
go nowhere
repine
founder
beef
strike out looking
miss
lose one's way
blow
require improvement
bomb
go down in flames
scant
gronk
come a cropper
bottom fall out
hit the skids
take the count
go wrong
fight a losing battle
lose ground
fimble
truck
thwart
jinx
blow up
kamikaze
blow up in one's face
stymie
drop the ball
fall back
lay eggs
go back on
postfailure
take a dive
take on water
halt
omit
miss the mark
dys-
do-or-die
dis-
fail
copout
premortem
unfulfillment
inefficacy
die on the vine
failingness
ineffectiveness
come a gutser
conk
borkage
plough
attempted
faultable
wither on the vine
melt down
nonfailure
dwalm
underachieve
bollocks up
draw a blank
miscarry
forfeit
fainaigue
no-win
failure to prepare is preparing to fail
goat rope
disconsider
out of the woods
dead duck
unmove
fumblingness
bungle
be riding for a fall
mess up
failable
default
in vain
turn turtle
doom
fall
disinvigorate
slip up
break
pansy
flat out