| infatuation(noun, feeling, respect, passion, taste) |
| instability(noun, weakness, fault, lack, lapse) |
| instinct |
| invalidity(noun, weakness, fault, lack, lapse) |
| involvement(noun, feeling, respect, passion, taste) |
| irresolution(noun, weakness, fault, lack, lapse) |
| itch(noun, feeling, love, passion, desire) |
| keenness(noun, desire, weakness, enthusiasm, eagerness) |
| labefaction(noun, weak, sick, unhealthy) |
| lack(noun, weakness, fault, lapse, failing) |
| lack of energy(noun, weak, sick, unhealthy) |
| languish(noun, weak, sick, unhealthy) |
| lapse(noun, weakness, fault, failing, flaw) |
| laxity(noun, weak, sick, unhealthy) |
| laxness(noun, weak, sick, unhealthy) |
| liability |
| like(noun, feeling, respect, passion, taste) |
| limpness(noun, weak, sick, unhealthy) |
| loophole |
| looseness(noun, weak, sick, unhealthy) |