| inoperative(inadequate, limited, feeble, useless, vain) |
| lame(inadequate, limited, feeble, useless, vain) |
| neutralized(inadequate, limited, feeble, useless, unpolluted) |
| no go(expression, inadequate, limited, feeble, useless) |
| no way(expression, inadequate, limited, feeble, useless) |
| not effective(expression, inadequate, limited, feeble, useless) |
| nugatory(inadequate, limited, feeble, useless, vain) |
| null(inadequate, limited, feeble, useless, vain) |
| paltry(inadequate, limited, feeble, useless, vain) |
| powerless(inadequate, limited, feeble, useless, vain) |
| spineless(inadequate, limited, feeble, useless, vain) |
| unable(inadequate, limited, feeble, useless, vain) |
| unavailable(inadequate, limited, feeble, useless, vain) |
| unavailing(inadequate, limited, feeble, useless, vain) |
| unfruitful(inadequate, limited, feeble, useless, vain) |
| unproductive(inadequate, limited, feeble, useless, vain) |
| unprofitable(inadequate, limited, feeble, useless, vain) |
| void(inadequate, limited, feeble, useless, vain) |
| withered(inadequate, limited, feeble, useless, vain) |
| worthless(inadequate, limited, feeble, useless, vain) |