| falsehood(slip, failure, fault, mistake, lapse) |
| falsity(slip, failure, fault, mistake, lapse) |
| falter(slip, stumble, tumble) |
| fiasco(noun, decline, ruin, defeat, collapse) |
| flash in the pan(noun, expression, idiom, decline, ruin) |
| flummox(error, muddle, blunder) |
| foul-up(break, slip, failure, mess, mistake) |
| foulup(failure, error, muddle, blunder, overestimation) |
| founder(trip, fall, slip, collapse, skip) |
| frolic(trip, fall, slip, collapse, skip) |
| frustration(noun, decline, ruin, defeat, collapse) |
| fuckup |
| fumble(noun, ruin, slip, collapse, mistake) |
| gaff(failure, mistake, error, blunder, overestimation) |
| gaucherie(break, slip, failure, mess, mistake) |
| go headlong(verb, expression, fall, slip, collapse) |
| go wrong(verb, expression, fall, slip, collapse) |
| goof-up(noun, failure, error, muddle, blunder) |
| hash(break, slip, mess, mistake, breach) |
| hop(trip, fall, slip, collapse, skip) |