| eye-opener(shock, disappointment, wonder, revelation, quickness) |
| fall(slip, failure, fault, mistake, lapse) |
| false expectation(expression, idiom, disappointment, inexpectation) |
| false impression(noun, expression, mistake, mix-up) |
| false move(noun, expression, confusion, fault, lapse) |
| false step(noun, expression, slip, confusion, fault) |
| falsity(slip, failure, fault, mistake, lapse) |
| faute |
| flub(noun, slip, confusion, fault, mistake) |
| flummox(error, muddle, blunder) |
| foulup(error, muddle, blunder) |
| fumble(noun, ruin, slip, mistake, destruction) |
| godsend(shock, disappointment, wonder, revelation, quickness) |
| goof(noun, slip, failure, fault, mistake) |
| goof-up(noun, mistake, error, muddle, blunder) |
| heresy(noun, deception, mistake, error, falsehood) |
| howler(noun, slip, deception, failure, fault) |
| illogicality(noun, deception, mistake, error, falsehood) |
| illusion(noun, confusion, deception, fault, mistake) |
| inadvertence(noun, confusion, fault, mistake, lapse) |