| become useless(verb, expression, molder, curdled, putresce) |
| bother(verb, rub, grind, fray, erode) |
| break |
| breaking down(verb, expression, molder, curdled, putresce) |
| cheapen(verb, fail, weaken, degenerate, deteriorate) |
| come to a halt(expression, idiom, decline, idle, languish) |
| crack |
| curdled(verb, lessen, degenerate, deteriorate, wane) |
| curdling(verb, lessen, degenerate, deteriorate, wane) |
| descend(verb, better, become) |
| deteriorate through neglect(expression, idiom) |
| die |
| disimprove(verb, fail, weaken, degenerate, deteriorate) |
| droop(verb, fail, weaken, degenerate, deteriorate) |
| drop(verb, fail, weaken, degenerate, deteriorate) |
| dry rot(verb, expression, degenerate, deteriorate, crumble) |
| ebb(verb, fail, weaken, degenerate, deteriorate) |
| enervate(verb, rub, grind, fray, erode) |
| exasperate(verb, rub, grind, fray, erode) |
| fall(verb, fail, weaken, degenerate, deteriorate) |