fumblingness
die on the vine
fumblingly
backfire
fight a losing battle
trip up
trip
unequal
blow
the wheels fell off
slip up
waver
fall flat on one's face
hit-or-miss
not win for losing
the jug goes to the well until it breaks
fallibility
go out
fall down
go down the toilet
lay eggs
malfunction
founder
failingly
skip a beat
wither on the vine
fimble
defectively
unfasten
repine
flunk out
bollocks up
bomb
uncompatible
scant
omit
halt
drop the ball
errant
kamikaze
bollocks
hinderingly
blow up in one's face
fail
blow up
fritz
underwhelm
fuster
scantle
gronk