flag
flunk
plough
makeup
flunk out
undertest
dop
fall flat on one's face
underwhelm
omit
drop the ball
ronin
fail
beef
fight a losing battle
fumblingness
pass-fail
nonsubmitter
fall down
test out
go out
go down the toilet
failure to prepare is preparing to fail
expire
be riding for a fall
bomb
die on the vine
postlapsarian
skipper
fimble
fall on one's face
bunk
balk
flunker
strike out looking
go wrong
weedout
maleducation
overtest
gronk
lay eggs
founder
failingness
error
nonattendance
fall by the wayside
lay an egg
fallible
miss
require improvement
missuit
the jug goes to the well until it breaks
welch
malfunction
draw a blank
break down
default
cut someone's throat
misplease
autopsy
truancy
go nowhere
hooky
hopeless
mismeet
dys-
fallibility
bite the big one
blow up in one's face
futz
miss stays
blow up
not win for losing
scant
kamikaze
indictment
repine
nonqualifier
go down in flames
error out
come to nought
nonevaluation
wither on the vine
misstudied
unsatisfy
neglect
divagation
scantle
trial
void
drag up
take a dive
fall down on
take the count
underassessment