| useless(adjective, weak, inferior, inadequate, limited) |
| dysfunctional(feature, characteristic, state, useless, weak) |
| ineffectual(adjective, weak, stupid, idle, inadequate) |
| broken(verb, adjective, ineffectual) |
| inactive(adjective, action, calm, dull, gentle) |
| ineffective(adjective, weak, stupid, idle, useless) |
| inefficacious(adjective, weak, skill, inferior, inadequate) |
| invalid(adjective, void, unsound, worthless, unacceptable) |
| idle(adjective, action, calm, dull, weak) |
| unusable(adjective, weak, stupid, useless, impractical) |
| void(adjective, inferior, inadequate, feeble, useless) |
| bootless(adjective, weak, stupid, inferior, inadequate) |
| dormant(adjective, calm, dull, gentle, still) |
| futile(adjective, weak, stupid, inferior, inadequate) |
| unworkable(adjective, weak, stupid, idle, incompetent) |
| vain(adjective, weak, stupid, inferior, inadequate) |
| barren(adjective, inadequate, limited, feeble, useless) |
| dead(adjective, calm, dull, cold, still) |
| defunct(adjective, dull, cold, tired, lifeless) |
| fruitless(adjective, weak, stupid, inferior, idle) |