| unable(inferior, inadequate, limited, feeble, useless) |
| unavailing(inferior, inadequate, limited, feeble, useless) |
| undid(verb, annulled) |
| undone(verb, annulled) |
| unfruitful(inadequate, limited, feeble, useless, vain) |
| uninjurious(adjective, clear, sound, pure, healthy) |
| unpolluted(adjective, clear, sound, pure, healthy) |
| unproductive(inadequate, limited, feeble, useless, vain) |
| unprofitable(inferior, inadequate, limited, feeble, useless) |
| unsuccessful(inferior, inadequate, limited, feeble, useless) |
| useless(inferior, inadequate, limited, feeble, vain) |
| vain(inferior, inadequate, limited, feeble, useless) |
| vetoed(verb, annulled) |
| vitiated(verb, disabled) |
| void(inferior, inadequate, limited, feeble, useless) |
| voided |
| wholesome(adjective, clear, pure, healthy, safe) |
| withdrawn(verb, annulled) |
| withdrew(verb, annulled) |
| withered(inferior, inadequate, limited, feeble, useless) |