| feeble(adjective, weak, inferior, short, inadequate) |
| inadequate(adjective, weak, inferior, short, limited) |
| unable(adjective, weak, inferior, inadequate, limited) |
| unfruitful(adjective, inferior, dry, idle, inadequate) |
| unrewarding(adjective, dry, idle, useless, ineffective) |
| void(adjective, inferior, inadequate, feeble, useless) |
| contemptible(adjective, poor, base, inferior, insignificant) |
| despicable(adjective, poor, base, inferior, insignificant) |
| failed(adjective, unsuccessful, arouse bad feelings) |
| good-for-nothing(adjective, poor, base, stupid, inferior) |
| helpless |
| impracticable(adjective, stupid, idle, useless, trivial) |
| incompetent(weak, stupid, idle, inadequate, limited) |
| inept(weak, stupid, idle, inadequate, feeble) |
| inferior(adjective, poor, base, insignificant, inadequate) |
| insufficient(adjective, weak, failure, short, useless) |
| invalid |
| mediocre(adjective, poor, base, inferior, insignificant) |
| null(adjective, inferior, inadequate, limited, feeble) |
| paltry(adjective, poor, base, inferior, insignificant) |