| dumb(impractical, half-baked, doomed) |
| erratic(silly, foolish, unwise) |
| fantastic(adjective, silly, foolish, unwise, impractical) |
| feeble-minded(impractical, half-baked, doomed) |
| flaky(silly, foolish, unwise) |
| flipped(silly, foolish, unwise) |
| flipped out(expression, silly, foolish, unwise) |
| foolish(adjective, silly, fantastic, unwise, impractical) |
| freaked out(expression, silly, foolish, unwise) |
| fruity(silly, foolish, unwise) |
| ignorant(impractical, half-baked, doomed) |
| ill-judged(impractical, half-baked, doomed) |
| imbecilic(impractical, half-baked, doomed) |
| impractical(half-baked, doomed) |
| indiscreet(impractical, half-baked, doomed) |
| irrational(silly, foolish, unwise) |
| kooky(silly, foolish, unwise) |
| lunatic(silly, foolish, unwise) |
| mad(silly, foolish, unwise) |
| mad as a March hare(expression, adjective, idiom, wild, silly) |