Answer:

fail

Answer	Crossword Clue
FAIL	Flunk
FAIL	Go belly-up
FAIL	Go down the tubes

FAIL	Go pfft!
FAIL	Opposite of ace
FAIL	Go downhill
FAIL	Fall short
FAIL	Disappoint
FAIL	Miss the mark
FAIL	Go broke
FAIL	Wash out

FAIL	Go belly up
FAIL	Give out
FAIL	Earn no credit, say
FAIL	Bomb
FAIL	Opposite of pass
FAIL	Bite the dust
FAIL	Not pass
FAIL	Come up short

FAIL	Pass's opposite
FAIL	Tank
FAIL	Flunk out
FAIL	Blow it
FAIL	Not make the grade
FAIL	Strike out
FAIL	Go on the fritz
FAIL	Go bankrupt

FAIL	Go under
FAIL	Fall flat
FAIL	Be unsuccessful
FAIL	Get an F
FAIL	Go Belly up
FAIL	Need to retake in summer school, say
FAIL	Conk out
FAIL	Go out of business

FAIL	Stop running, perhaps
FAIL	Not cut it
FAIL	Go kaput
FAIL	Need repair
FAIL	Fall short of success