| despoil(verb, abuse, spoil, insult, debase) |
| devalue(cut, hurt, thin, spoil, corrupt) |
| disgrace(verb, dull, hurt, dirty, corrupt) |
| dishonor(verb, hurt, abuse, spoil, insult) |
| disintegrate(verb, break, decline, hurt, ruin) |
| dissolve(verb, cut, decline, ruin, thin) |
| distain |
| divert |
| doctor up(expression, cut, thin, spoil, corrupt) |
| draggle(verb, corrupt, foul, stain, smear) |
| dry-rot(verb, decline, weaken, lessen, degenerate) |
| dwindle(verb, decline, weaken, lessen, degenerate) |
| empoison |
| entangle(verb, catch, snarl) |
| fade(verb, break, decline, hurt, ruin) |
| fail(verb, decline, weaken, lessen, degenerate) |
| filthy |
| get worse(expression, decline, weaken, lessen, degenerate) |
| go bad(verb, expression, decline, ruin, weaken) |
| go to seed(expression, idiom, decline, weaken, lessen) |