| imperfection(noun, disorder, weakness, fault, illness) |
| infection(noun, disorder, disease, illness, sickness) |
| lameness(noun, weakness, delicacy, inadequacy, shakiness) |
| languidness |
| languish(noun, verb, weak, sick, unhealthy) |
| lethargy(noun, weakness, weariness, tiredness, exhaustion) |
| nausea(noun, disease) |
| overtiredness(noun, weakness, fatigue, lethargy, weariness) |
| sleepiness |
| softness(noun, beauty, refinement, delicacy, elegance) |
| subtlety(noun, beauty, refinement, delicacy, elegance) |
| syndrome(noun, disorder, disease, illness, sickness) |
| thinness(noun, weakness, lightness, shakiness, frailty) |
| tiredness(noun, weakness, fatigue, lethargy, weariness) |
| unfitness(noun, infirmity, frailty, incapacity) |
| vice(noun, weakness, fault, lack, lapse) |
| virus(noun, disorder, disease, illness, sickness) |
| vulnerability(noun, disorder, weakness, fault, illness) |
| weakening(noun, weakness, debilitation) |
| wilt(noun, verb, weak, sick, unhealthy) |