| incapable(adjective, useless, unfunctional, malfunctional) |
| inactive(adjective, useless, unfunctional, malfunctional) |
| inefficient(adjective, useless, inactive, incapable) |
| inept(adjective, useless, inactive, incapable) |
| insufficient(adjective, useless, inactive, incapable) |
| unable(adjective, useless, inactive, incapable) |
| bad(adjective, useless, inactive, incapable) |
| bankrupt in ability(adjective, useless, inactive, incapable) |
| disabled(adjective, useless, inactive, incapable) |
| inadequate(adjective, useless, inactive, incapable) |
| incompetent(adjective, useless, inactive, incapable) |
| ineffective(adjective, useless, inactive, incapable) |
| malfunctional(adjective, useless, inactive, incapable) |
| not capable(adjective, useless, inactive, incapable) |
| not gifted(adjective, useless, inactive, incapable) |
| unapt(adjective, useless, inactive, incapable) |
| under a disability(adjective, useless, inactive, incapable) |
| unfit(adjective, useless, inactive, incapable) |
| unfunctional(adjective, useless, inactive, incapable) |
| unqualified(adjective, useless, inactive, incapable) |