| retrogressive(adjective, mean, low, immoral, debased) |
| scanty(adjective, light, weak, poor, short) |
| scarce(adjective, weak, poor, short, shy) |
| sickly(adjective, weak, thin, delicate, ill) |
| skimpy(adjective, close, light, weak, poor) |
| unhealthy(mean, low, immoral, debased, deteriorated) |
| unsatisfactory |
| unsuccessful(adjective, vain, ineffective, weakening, unproductive) |
| waning(noun, verb, adjective, drop, decline) |
| wasting(noun, decline, ruin, collapse, deterioration) |
| weak spot(noun, expression, catch, difficulty, weakness) |
| weakened(adjective, weak, thin, delicate, shaky) |
| withering(decline, ruin, collapse, deterioration, impairment) |
| without |
| ailing(noun, adjective, weak, disorder, weakness) |
| blind spot(noun, expression, weakness, fault, shortcoming) |
| blot(noun, weakness, crack, fault, blemish) |
| bust(noun, decline, ruin, defeat, collapse) |
| busting |
| collapse(noun, decline, ruin, defeat, failure) |