| infirmity(noun, weakness, languor, incapacity, frailness) |
| debilitation(noun, strong, decrease, weakness, reduction) |
| enervation(noun, strong, weakness, languor, incapacity) |
| exhaustion(noun, decrease, weakness, reduction, languor) |
| debility(noun, weakness, incapacity, debilitation, frailness) |
| weakening(noun, drop, fall, decrease, weakness) |
| attenuation(noun, strong, decrease, weakness, reduction) |
| weakness(noun, decrease, reduction, weakening, incapacity) |
| languor(noun, weakness, incapacity) |
| weariness |
| abatement(noun, drop, fall, failure, deterioration) |
| decline(noun, drop, fall, deterioration, falloff) |
| delicacy(weakness, frailness, fragileness) |
| depletion(noun, strong, decrease, weakness, reduction) |
| deterioration(noun, drop, fall, failure, falloff) |
| devitalization(noun, strong, decrease, weakness, reduction) |
| failure(noun, drop, fall, deterioration, falloff) |
| faintness(noun, weakness, languor, incapacity) |
| fatigue |
| feebleness(noun, weakness, incapacity, debilitation, frailness) |