| wasting(noun, weak, sick, unhealthy) |
| weak point(noun, expression, difficulty, weakness, fault) |
| affection(noun, disorder, disease, illness, defect) |
| ailing(noun, adjective, disorder, weakness, fault) |
| attack(noun, disorder, disease, illness, defect) |
| blight(disorder, illness, defect, sickness, affliction) |
| brain fag(noun, expression, weakness, lethargy, weariness) |
| bug(noun, disorder, disease, illness, sickness) |
| cachexia |
| complaint(noun, disorder, disease, illness, sickness) |
| decay(noun, disorder, weakness, fault, illness) |
| delicateness(noun, strong, disorder, weakness, condition) |
| dullness(noun, weakness, lethargy, weariness, tiredness) |
| etiolation(noun, weakness, delicacy, inadequacy, shakiness) |
| failing(noun, disorder, weakness, fault, illness) |
| fault(noun, disorder, weakness, illness, lack) |
| feeble(noun, adjective, weak, sick, unhealthy) |
| fever(noun, disorder, disease, illness, defect) |
| fragileness(noun, strong, weakness, condition, failing) |
| ill health(noun, expression, disorder, weakness, fault) |