fall flat Synonyms

founder fall through flop be in vain be frustrated be defeated be ruined hit the skids miss the mark go down like a lead balloon go pear-shaped go astray blow up in someone's face not come up to scratch lack success come to a bad end meet with failure be found lacking turn out badly be a disappointment be a failure be a disaster suffer defeat not succeed meet with disaster go amiss fizzle out fall down backfire run aground break down go down miscarry abort fall fail collapse go wrong grind to a halt fall short go up in smoke come to nothing come to naught come to grief come a cropper bite the dust flatline misfire bomb out bomb