| poorly(adjective, adverb, mean, ill, sick) |
| rotten(adjective, mean, bad, weak, weakness) |
| run-down(adjective, sick, feeble, weakened, poorly) |
| slack(adjective, weak, weakness, loose, lifeless) |
| tottery(adjective, change, strong, weak, unsettled) |
| unsure(adjective, change, strong, weak, unstable) |
| vulnerable(adjective, weak, delicate, loose, feeble) |
| anemic(adjective, weak, delicate, uncertain, ill) |
| capricious(adjective, irresolute) |
| changeable(adjective, irresolute) |
| effete(adjective, weak, weakness, thin, delicate) |
| fickle(adjective, weak, indecisive, irresolute, vacillating) |
| limp(adjective, dull, weak, easy, slow) |
| precarious(adjective, change, strong, weak, unstable) |
| seedy(adjective, weak, weakness, thin, feeble) |
| slight(adjective, light, weak, thin, delicate) |
| tender(adjective, weak, delicate, uncertain, feeble) |
| tentative(adjective, weak, indecisive, irresolute, vacillating) |
| undecided(adjective, weak, uncertain, doubtful, unsure) |
| undependable(adjective, uncertain, feeble, shaky, hesitant) |