| deflation |
| deterioration(noun, decline, ruin, defeat, collapse) |
| downfall(noun, decline, ruin, defeat, collapse) |
| error(noun, failure) |
| failing(noun, decline, ruin, defeat, neglect) |
| false step(noun, expression, decline, ruin, defeat) |
| faux pas(noun, expression, decline, ruin, defeat) |
| flash in the pan(noun, expression, idiom, decline, ruin) |
| flop(noun, decline, ruin, defeat, collapse) |
| frustration(noun, decline, ruin, defeat, collapse) |
| inadequacy(noun, decline, ruin, defeat, collapse) |
| lapse(noun, failure) |
| lead balloon(noun, expression, decline, ruin, defeat) |
| lemon(noun, decline, ruin, defeat, collapse) |
| loser(noun, decline, ruin, defeat, collapse) |
| loss(noun, decline, ruin, defeat, neglect) |
| malfunction(noun, failure) |
| mess(noun, decline, ruin, defeat, collapse) |
| misadventure(noun, decline, ruin, defeat, collapse) |
| miscarriage(noun, decline, ruin, defeat, collapse) |