fail Synonyms

flunk bomb give out neglect conk out come to nothing break fall flat go downhill give way go wrong miscarry break down wash out tucker out mess up come apart clanger come to naught run out malfunction grind to a halt come short fall short foul up let down washout weaken wilt wither worsen strike out vanish conk go down act up go bad close down run aground chicken out choke up backfire wane bomb out flush it go down the toilet go to pot go up in flames fizzle out go astray