| fall flat(verb, expression, decline, fall, fail) |
| fizzling |
| flag(verb, strong, increase, lose) |
| flounder(verb, decline, fall, fail, slip) |
| foiling(hindrance, disappointment, annoyance, prevention, blocking) |
| frothing |
| fry(noun, excitement, agitation, unrest, hiss) |
| go astray(verb, expression, decline, fall, fail) |
| go down(verb, expression, decline, fall, fail) |
| go down swinging(verb, expression, idiom, decline, fall) |
| go downhill(verb, expression, idiom, strong, decline) |
| go phut |
| go up in smoke(verb, expression, idiom, decline, fall) |
| guggle |
| hit bottom(verb, expression, decline, fall, fail) |
| hit the skids(verb, expression, idiom, strong, decline) |
| languish(verb, strong, increase, lose) |
| lapse(noun, failure) |
| letdown(hindrance, prevention, blocking) |
| lose control(verb, expression, decline, fall, fail) |