| decadent |
| decline(noun, drop, collapse, deterioration, decay) |
| decrease(decline, ruin, collapse, failing, deterioration) |
| decrepitude(decline, ruin, collapse, failing, deterioration) |
| defeat(noun, collapse, extinction, destruction, wreck) |
| degeneracy(noun, decline, collapse, extinction, destruction) |
| degenerate |
| degeneration(noun, drop, decline, collapse, extinction) |
| degringolade(noun, drop, decline, decay, degradation) |
| depreciation(noun, drop, decline, collapse, deterioration) |
| deserted(shabby, dilapidated, neglected, ramshackle, unattended) |
| desolate(shabby, dilapidated, neglected, ramshackle, unattended) |
| detrition |
| dingy(shabby, worn, dilapidated, seedy, damaged) |
| disjunction |
| dislocation(noun, drop, decline, decay, degradation) |
| disorganization |
| disrepair(noun, drop, decline, collapse, extinction) |
| division(noun, disintegration, fragmentation) |
| dog-eared(shabby, worn, dingy, seedy, damaged) |