| nylon(adjective, fabric) |
| of no effect(expression, idiom) |
| pale |
| powerless(adjective, weak, thin, delicate, inferior) |
| queer the works(expression, idiom) |
| sap(verb, hurt, weaken, injure, immobilize) |
| sapless(adjective, weak, thin, delicate, shaky) |
| sickly(adjective, weak, disease, thin, delicate) |
| tame(weak, thin, incompetent, frail, puny) |
| unfit |
| unpersuasive(adjective, weak, poor, feeble, implausible) |
| unprepared(adjective, poor, inadequate, imperfection, ineffective) |
| unsound(adjective, weak, disease, delicate, false) |
| unsuitable(adjective, bad, weak, poor, offensive) |
| weakened(adjective, weak, thin, delicate, shaky) |
| weakly(adjective, weak, poor, thin, delicate) |
| wing |
| abortive(inferior, inadequate, limited, feeble, useless) |
| ailing(adjective, weak, thin, delicate, ill) |
| anemic(adjective, weak, delicate, ill, sick) |