| ludicrous(weak, simple, silly, foolish, thoughtless) |
| lunatic(weak, simple, silly, foolish, thoughtless) |
| mad(weak, simple, silly, foolish, thoughtless) |
| natural |
| nearsighted |
| nerdy(weak, simple, silly, foolish, thoughtless) |
| nonsensical(weak, simple, silly, foolish, thoughtless) |
| nutty(weak, simple, silly, foolish, thoughtless) |
| pliable |
| preposterous(weak, simple, silly, foolish, thoughtless) |
| ridiculous(weak, simple, silly, foolish, thoughtless) |
| senseless(weak, simple, silly, foolish, thoughtless) |
| short-sighted(weak, simple, silly, foolish, thoughtless) |
| silly(weak, simple, foolish, thoughtless, unwise) |
| soft |
| soft in the head(adjective, handicapped) |
| spineless |
| tomfool(adjective, foolish) |
| unreasonable(weak, simple, silly, foolish, thoughtless) |
| unwise(weak, simple, silly, foolish, thoughtless) |