| unbusinesslike(wild, unreasonable, useless, absurd, abstract) |
| unfeasible(wild, unreasonable, useless, absurd, unrealistic) |
| unfit(weak, skill, inadequate, incompetent, inept) |
| unfitted(weak, skill, inadequate, unfit, inept) |
| unimportant |
| unqualified(weak, skill, inadequate, incompetent, unfit) |
| unreal(wild, unreasonable, useless, absurd, unsound) |
| unrealistic(wild, unreasonable, useless, absurd, abstract) |
| unserviceable(wild, unreasonable, useless, absurd, abstract) |
| unskilled(weak, skill, inadequate, incompetent, unfit) |
| unsturdy |
| unusable(adjective, wild, unreasonable, useless, absurd) |
| unwise(wild, unreasonable, useless, absurd, abstract) |
| unworkable(adjective, wild, unreasonable, useless, absurd) |
| visionary(wild, unreasonable, useless, absurd, unrealistic) |
| wasteful(adjective, incompetent, unproductive) |
| withered(adjective, inferior, inadequate, limited, feeble) |
| Sisyphean |
| affect |
| annul |