| prostrate(adjective, weak, uncertain, inadequate, feeble) |
| rickety(adjective, uncertain, feeble, shaky, hesitant) |
| rocky(adjective, uncertain, feeble, shaky, hesitant) |
| rotten(adjective, uncertain, feeble, shaky, hesitant) |
| senile(adjective, uncertain, feeble, shaky, hesitant) |
| set aside(expression, adjective, void, meaningless, invalid) |
| shaky(adjective, uncertain, feeble, hesitant, sluggish) |
| sickly(adjective, uncertain, feeble, dim, hesitant) |
| slack-spined(adjective, inadequate, limited, feeble, useless) |
| soft |
| spindly(adjective, uncertain, feeble, shaky, hesitant) |
| sterile(adjective, weak, inadequate, incompetent, inept) |
| tender(adjective, uncertain, feeble, shaky, hesitant) |
| tepid |
| thin |
| torpid(adjective, uncertain, feeble, shaky, hesitant) |
| unable(adjective, weak, inferior, inadequate, limited) |
| unauthoritative |
| unavailable(adjective, inadequate, limited, feeble, useless) |
| unavailing(adjective, inferior, inadequate, limited, feeble) |