| cockeyed(silly, foolish, fantastic, unwise, impractical) |
| counterproductive(weak, stupid, idle, useless, incompetent) |
| delusory |
| derisory(silly, foolish, fantastic, unwise, impractical) |
| detrimental(adjective, useless) |
| disadvantageous(weak, stupid, idle, useless, incompetent) |
| dreamy |
| dying |
| eccentric(silly, foolish, fantastic, unwise, impractical) |
| expendable(weak, stupid, idle, useless, incompetent) |
| fake |
| fatuous(silly, foolish, fantastic, unwise, impractical) |
| feckless(weak, stupid, idle, useless, incompetent) |
| foolhardy(silly, foolish, fantastic, unwise, impractical) |
| foolish(silly, fantastic, unwise, impractical, half-baked) |
| functionless |
| goofy(silly, foolish, fantastic, unwise, impractical) |
| half-baked(silly, foolish, fantastic, unwise, unlikely) |
| harebrained(silly, foolish, fantastic, unwise, impractical) |
| idiotic(silly, foolish, fantastic, unwise, impractical) |