| flop(verb, decline, fall, fail, slip) |
| go down(verb, expression, phrasal verb, stop, drop) |
| go to seed(verb, expression, idiom, decline, fail) |
| go to the dogs(verb, expression, idiom, drop, decline) |
| grow worse(expression, idiom) |
| hit rock bottom(expression, idiom, decline, weaken, lessen) |
| make worse(verb, expression, idiom, worsen, intensify) |
| miss(verb, decline, fall, fail, slip) |
| molder(verb, stop, end, beat, decline) |
| pollute(verb, cut, decline, hurt, ruin) |
| reduce(verb, drop, cut, decline, destroy) |
| return(verb, drop, decline, reduce, fall) |
| rust(verb, hurt, reduce, destroy, smart) |
| shrink(verb, drop, cut, decline, reduce) |
| taint(verb, cut, hurt, ruin, thin) |
| wear away(verb, expression, phrasal verb, stop, drop) |
| abate(verb, stop, drop, cut, decline) |
| abort(verb, decline, fall, fail, slip) |
| addle(verb, decay, taint, rot, decompose) |
| alloy(verb, cut, decline, thin, corrupt) |