| transient(noun, adjective, weak, weakness, failing) |
| unable(adjective, weak, fit, failing, flaccidity) |
| uncertain(adjective, weak, weakness, failing, infirmity) |
| unknown(noun, adjective, adverb, feature, weak) |
| unsustainable(adjective, mean, soft, poor) |
| vacillant(adjective, weakness, failing, infirmity) |
| vague(adjective, weakness, failing, infirmity) |
| wan(adjective, weak, soft, colorless, fragile) |
| weakened(verb, adjective, action, weak, weakness) |
| weakling(noun, adjective, weak, soft, failing) |
| white(adjective, weak, dark, failing, which) |
| wimpy(adjective, weakness, failing, infirmity) |
| wishy-washy(adjective, weak, weakness, failing, infirmity) |
| yielding(adjective, weakness, failing, infirmity) |
| aged(noun, adjective, weak, weakness, failing) |
| ailing(adjective, weakness, well, failing, infirmity) |
| ambrosial(adjective, weakness, failing, infirmity) |
| annual(noun, verb, adjective, action, weak) |
| backward(noun, adjective, adverb, feature, weak) |
| bad(noun, adjective, adverb, feature, weak) |