| goofy(adjective, frivolous, dizzy, frothy, flighty) |
| cockamamy |
| silly(adjective, weak, simple, foolish, crazy) |
| foolish(adjective, weak, simple, wrong, silly) |
| wacky(adjective, weak, simple, wrong, silly) |
| daft(adjective, weak, simple, silly, foolish) |
| sappy |
| absurd(adjective, weak, simple, wrong, silly) |
| nutty(adjective, weak, simple, wrong, slang) |
| whacky |
| ridiculous(adjective, weak, simple, wrong, silly) |
| asinine |
| bonkers(adjective, slang, crazy, mad) |
| crazy(adjective, weak, simple, wrong, silly) |
| irrational(adjective, weak, simple, silly, foolish) |
| laughable |
| nonsensical(weak, simple, foolish, unreasonable, illogical) |
| preposterous(adjective, weak, simple, extraordinary, foolish) |
| stupid(weak, simple, foolish, unreasonable, illogical) |
| zany |