| false move(noun, expression, slip, confusion, failure) |
| falsehood(slip, failure, fault, mistake, lapse) |
| falsity(slip, failure, fault, mistake, lapse) |
| faux |
| fiasco(noun, decline, ruin, defeat, blow) |
| fix(noun, difficulty, confusion, shame, mess) |
| flash in the pan(noun, expression, idiom, decline, ruin) |
| flop(noun, decline, ruin, defeat, collapse) |
| flounder |
| flub-up(failure, fault, mistake, lapse, indiscretion) |
| flummox(error, muddle, blunder) |
| fool mistake(noun, expression, mistake, rudeness, lapse) |
| foolishness(noun, mistake, rudeness, lapse, error) |
| foul-up(noun, failure, mistake, rudeness, lapse) |
| foulup(failure, error, muddle, blunder, overestimation) |
| frustration(noun, decline, ruin, defeat, collapse) |
| hash(noun, mistake, error, indiscretion, gaffe) |
| hastiness(noun, mistake, rudeness, lapse, error) |
| hitch(noun, difficulty, confusion, shame, mess) |
| hot seat(noun, expression, difficulty, confusion, shame) |