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 go amiss blow up in someone's face not come up to scratch 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 lack success fizzle out fall down backfire run aground break down go down tank miscarry abort fall fail collapse go wrong grind to a halt go up in smoke come to nothing come to naught come to grief come a cropper bite the dust flatline misfire bomb out fall short