| lassitude(noun, disorder, weakness, illness, sickness) |
| lessening(noun, drop, fall, failure, deterioration) |
| liking(noun, weakness, fault, lack, lapse) |
| morbidity |
| mortification(decline, ruin, collapse, failing, deterioration) |
| nausea(noun, disease) |
| on the skids(noun, expression, idiom, drop, fall) |
| penchant(noun, weakness, fault, lack, lapse) |
| perishing(decline, ruin, collapse, failing, deterioration) |
| pestilence(noun, disease) |
| pratfall(noun, drop, fall, failure, deterioration) |
| predilection(noun, weakness, fault, lack, lapse) |
| proclivity(noun, weakness, fault, lack, lapse) |
| proneness(noun, fault, lack, lapse, failing) |
| prostration(noun, weakness, fault, lack, lapse) |
| putrefaction(noun, decline, collapse, deterioration, decay) |
| putrescence(noun, decline, collapse, deterioration, decay) |
| putridity(decline, collapse, deterioration, impairment, degeneration) |
| putridness(decline, ruin, collapse, failing, deterioration) |
| queasiness(noun, disease) |