| deteriorate(verb, decline, fall, fail, slip) |
| drop(verb, decline, reduce, disregard, trip) |
| dwindle(verb, decline, reduce, diminish, decrease) |
| fizzle out(verb, expression, phrasal verb, fail, collapse) |
| flounder(verb, decline, fall, fail, slip) |
| fold(verb, decline, fall, fail, slip) |
| forget(verb, drop, disregard, trip, fall) |
| founder(verb, decline, fall, fail, slip) |
| go astray(verb, expression, decline, fall, fail) |
| go down(verb, expression, phrasal verb, decline, fall) |
| go down swinging(verb, expression, idiom, decline, fall) |
| go downhill(verb, expression, decline, fall, fail) |
| go up in smoke(verb, expression, idiom, decline, fall) |
| hit bottom(verb, expression, decline, fall, fail) |
| hit the skids(verb, expression, idiom, decline, fall) |
| lack(adjective, want) |
| lose(verb, drop, disregard, trip, fall) |
| lose control(verb, expression, decline, fall, fail) |
| lose out(verb, expression, phrasal verb, decline, fall) |
| lose status(verb, expression, decline, fall, fail) |