| confinement(disorder, disease, collapse, disturbance, sickness) |
| contract disease |
| convalescence(disorder, disease, collapse, disturbance, sickness) |
| convert(verb, move, change, push, return) |
| crash(verb, drop, decline, settle, ease) |
| cripple(verb, decline, reduce, fail, halt) |
| cropper(noun, drop, fall, decrease, failure) |
| crumble(verb, decline, reduce, fail, halt) |
| cut(verb, decline, reduce, fail, halt) |
| debase(verb, decline, reduce, fail, halt) |
| debilitate(verb, decline, reduce, fail, halt) |
| decrepitude(noun, drop, fall, failure, deterioration) |
| defeat |
| degeneracy(noun, drop, fall, collapse, failure) |
| delay |
| depart(verb, move, change, push, return) |
| depreciate(verb, drop, decline, settle, fall) |
| depress(verb, decline, reduce, fail, halt) |
| descend(verb, drop, decline, reduce, fall) |
| detour(verb, move, change, push, return) |