| descent(noun, drop, fall, failure, deterioration) |
| devolution(noun, drop, fall, failure, deterioration) |
| diminishing(adjective, weakening, lessening, dying, fading) |
| disaster(noun, defeat, affection, bomb, disappointment) |
| downtrend(noun, drop, fall, deterioration, falloff) |
| downturn(noun, drop, fall, failure, deterioration) |
| drained |
| dropping |
| ebb(noun, drop, fall, failure, deterioration) |
| ebbing(noun, adjective, drop, fall, last) |
| eccentricity(noun, weakness, fault, shortcoming) |
| effete(adjective, mean, weak, low, thin) |
| enduring |
| enervated(adjective, weak, thin, delicate, shaky) |
| enfeebled(adjective, weak, thin, delicate, ill) |
| fall(noun, drop, failure, deterioration, falloff) |
| falling-off(noun, drop, decline, fall, deterioration) |
| faltering(verb, adjective, weak, delicate, ill) |
| feebleness(noun, disorder, weakness, fault, illness) |
| floundering |