| null(adjective, inferior, inadequate, feeble, useless) |
| powerless(adjective, weak, skill, inadequate, useless) |
| incompetent(adjective, weak, skill, inadequate, feeble) |
| unable(adjective, skill, inferior, inadequate, limited) |
| unprofitable(adjective, inferior, inadequate, feeble, useless) |
| idle(adjective, inferior, inadequate, feeble, useless) |
| lame(adjective, inferior, inadequate, limited, feeble) |
| pointless(adjective, arouse bad feelings) |
| uneffective |
| unfruitful(adjective, inadequate, feeble, useless, vain) |
| counterproductive |
| empty |
| failed(adjective, arouse bad feelings) |
| feeble(adjective, inadequate, useless, incompetent, vain) |
| forceless(adjective, inferior, inadequate, limited, feeble) |
| impractical(adjective, unreasonable, unrealistic, unpractical, unviable) |
| indecisive(adjective, inferior, inadequate, limited, feeble) |
| inept(adjective, weak, skill, inadequate, feeble) |
| paltry(adjective, inferior, inadequate, useless, trivial) |
| profitless(adjective, arouse bad feelings) |