| fainting fit(noun, weak, sick, unhealthy) |
| fatigue(noun, weak, sick, unhealthy) |
| fault(noun, weakness, lack, lapse, failing) |
| feeble(noun, weak, sick, unhealthy) |
| feeling for |
| flabbiness(noun, weak, sick, unhealthy) |
| flaccidity(noun, weak, sick, unhealthy) |
| frangibility(noun, weak, sick, unhealthy) |
| friendship(noun, feeling, love, respect, passion) |
| gap(noun, weakness, fault, lack, lapse) |
| hankering(noun, feeling, respect, passion, desire) |
| hyposthenia(noun, weak, sick, unhealthy) |
| idolatry(noun, feeling, respect, passion, taste) |
| impairment(noun, weakness, fault, lapse, failing) |
| imperfection(noun, weakness, fault, lack, lapse) |
| impuissance(noun, weak, sick, unhealthy) |
| in the gut(noun, expression, idiom, weakness, spot) |
| inconstancy(noun, weakness, fault, lack, lapse) |
| indecision(noun, weakness, fault, lack, lapse) |
| inertia(noun, weak, sick, unhealthy) |