| defalcator |
| degeneracy(noun, drop, fall, failure, deterioration) |
| degeneration(noun, drop, fall, failure, deterioration) |
| dematerialization(ebb, disappearance, windup, devolution) |
| demotion(noun, decline, fall, blow, down) |
| depression(noun, drop, fall, deterioration, falloff) |
| descension |
| desistance(ebb, disappearance, windup) |
| deterioration(noun, drop, fall, failure, falloff) |
| difficulty(noun, problem, bug, impediment, hitch) |
| dip(noun, drop, fall, decrease, deterioration) |
| disadvantage(noun, difficulty, problem, bug, impediment) |
| disappearance(ebb, windup, devolution) |
| disappearing act(expression, ebb, disappearance, windup, devolution) |
| disaster |
| discomfiture(noun, decline, fall, blow, down) |
| disillusionment(blow, letdown) |
| dissolution(noun, drop, fall, failure, deterioration) |
| docker |
| down(noun, decline, fall, blow, letdown) |