| insubstantiality(noun, strong, disorder, weakness, condition) |
| delicacy(noun, strong, disorder, weakness, condition) |
| fragility(noun, strong, disorder, weakness, condition) |
| infirmity(noun, strong, weakness, condition, failing) |
| debility(noun, strong, weakness, condition, failing) |
| decrepitude(noun, strong, weakness, condition, failing) |
| feebleness(noun, strong, disorder, weakness, condition) |
| flimsiness(noun, strong, disorder, weakness, condition) |
| frailness(noun, strong, disorder, weakness, condition) |
| frailty(noun, strong, disorder, weakness, condition) |
| unsoundness(noun, strong, disorder, weakness, condition) |
| weakliness(noun, strong, weakness, condition, failing) |
| weakness(noun, strong, disorder, informal, condition) |
| ailment(noun, weakness, failing, infirmity, fragility) |
| delicateness(noun, strong, disorder, weakness, condition) |
| disease(noun, weakness, failing, infirmity, fragility) |
| disorder(noun, weakness, failing, infirmity, fragility) |
| fragileness(noun, strong, disorder, weakness, condition) |
| immateriality(noun, immateriality) |
| incorporeality(noun, immateriality) |