| recession(noun, drop, fall, failure, deterioration) |
| relapse(noun, drop, fall, failure, deterioration) |
| ricketiness(noun, feebleness) |
| rot(decline, collapse, deterioration, impairment, degeneration) |
| rotting(decline, ruin, collapse, failing, deterioration) |
| ruination(decline, ruin, collapse, failing, deterioration) |
| rust(decline, ruin, collapse, failing, deterioration) |
| shabbiness(noun, ruin, disrepair) |
| shortcoming(noun, disorder, weakness, fault, illness) |
| skids(noun, drop, fall, failure, deterioration) |
| slump(noun, drop, fall, failure, deterioration) |
| soft spot(noun, expression, weakness, fault, lack) |
| sore point(noun, expression, weakness, fault, lack) |
| spasm(noun, disease) |
| spoilage(noun, decline, ruin, collapse, failing) |
| spoilation(decline, ruin, collapse, failing, deterioration) |
| sprain |
| strain |
| strong |
| symptom(noun, disease) |