| flee |
| get worse(verb, expression, decline, weaken, lessen) |
| go bad(verb, expression, decline, weaken, lessen) |
| go to seed(verb, expression, idiom, decline, weaken) |
| go to the dogs(verb, expression, idiom, decline, weaken) |
| hit rock bottom(verb, expression, idiom, decline, weaken) |
| hit the skids(verb, expression, idiom, decline, weaken) |
| melt away(verb, expression, phrasal verb, decline, separate) |
| mildew(verb, decline, weaken, lessen, degenerate) |
| mold(verb, decline, weaken, lessen, degenerate) |
| mortify(verb, decline, weaken, lessen, degenerate) |
| parch(contract, shrink, wither) |
| pass away(verb, expression, phrasal verb, pass, heat) |
| pejorate(verb, decline, weaken, lessen, degenerate) |
| pine(verb, break, fail, weaken, suffer) |
| pine away(verb, expression, suffer) |
| pollute(verb, decline, weaken, lessen, degenerate) |
| putrefy(verb, decline, weaken, lessen, stain) |
| putresce(verb, decline, weaken, lessen, degenerate) |
| reach depths(verb, expression, decline, weaken, lessen) |