103 entries under silly topic. ×
| fatuous(foolish, stupid, unwise) | |
| flaky(adjective, simple, foolish, crazy) | |
| flipped(foolish, mad, insane, unwise) | |
| frenzied(foolish, stupid, irrational, distraught) | |
| idiotic(simple, foolish, stupid, mad) | |
| impractical(foolish, stupid) | |
| irresponsible(foolish, stupid, unwise) | |
| preposterous(foolish, stupid, unwise) | |
| quixotic(adjective, wild, foolish, senseless) | |
| rabid(foolish, stupid) | |
| raging(foolish, stupid) | |
| ridiculous(simple, foolish, stupid, unsound) | |
| unglued(foolish, mad, insane, unwise) | |
| unzipped(foolish, mad, insane, unwise) | |
| aper(mad, insane, hacked, lunatic) | |
| beyond all reason(expression, idiom, foolish, unwise) | |
| cockeyed(foolish, unwise) | |
| derisory(foolish, unwise) | |
| fantastic(foolish, unwise) | |
| foolhardy(foolish, unwise) |
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| APA | Smart Define. (2015). mental thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mental/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mental thesaurus" https://smartdefine.org/mental/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, mental thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mental/thesaurus/synonyms>. |
| MLA | Smart Define. "mental thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/mental/thesaurus/synonyms> |