| unpurposed(adjective, weak, stupid, idle, incompetent) |
| unqualified(adjective, weak, skill, inadequate, incompetent) |
| unsavory(adjective, nasty, unpleasant, disagreeable, distasteful) |
| unskilled(adjective, weak, skill, inadequate, unfit) |
| untrained(adjective, incompetent, unqualified, inept, unable) |
| unusable(adjective, weak, poor, base, inferior) |
| unusuable(adjective, weak, stupid, idle, incompetent) |
| unwelcome(adjective, poor, nasty, unpleasant, awful) |
| unworkable(adjective, weak, stupid, idle, useless) |
| unworthy(adjective, bad, poor, offensive, inadequate) |
| vain(adjective, weak, stupid, idle, useless) |
| vicious(adjective, vile, useless, worthless, shady) |
| vile(adjective, useless, worthless, shady, dishonorable) |
| waste(adjective, weak, poor, stupid, inferior) |
| waste of space(expression, idiom) |
| weak(adjective, stupid, idle, inadequate, useless) |
| white elephant(expression, adjective, mean, bad, poor) |
| wrong(adjective, bad, poor, nasty, unpleasant) |
| acid(adjective, nasty, unpleasant, disagreeable, distasteful) |
| addlebrain(bungler, bumbler, fumbler) |