| debility(noun, strong, weakness, condition, failing) |
| delicacy(noun, strong, weakness, condition, failing) |
| fragility(noun, strong, weakness, condition, failing) |
| frailty(noun, strong, weakness, condition, failing) |
| infirmity(noun, strong, weakness, condition, failing) |
| insubstantiality(noun, strong, weakness, condition, failing) |
| puniness(noun, strong, weakness, condition, failing) |
| unsubstantiality(noun, strong, weakness, condition, failing) |
| decrepitude(noun, strong, weakness, condition, failing) |
| delicateness(noun, strong, weakness, condition, failing) |
| feebleness(noun, strong, weakness, condition, failing) |
| flimsiness(noun, strong, weakness, condition, failing) |
| fragileness(noun, strong, weakness, condition, failing) |
| frailness(noun, strong, weakness, condition, failing) |
| ill health(noun, expression, weakness, failing, delicacy) |
| unsoundness(noun, strong, weakness, condition, failing) |
| weakness(noun, strong, informal, condition, failing) |
| affliction(noun, weakness, failing, infirmity, fragility) |
| ailment(noun, weakness, failing, infirmity, fragility) |
| confinement(noun, weakness, failing, infirmity, fragility) |