97 entries under foolish topic. ×
| impractical(silly, stupid) | |
| irresponsible(silly, stupid, unwise) | |
| preposterous(silly, stupid, unwise) | |
| quixotic(adjective, wild, silly, senseless) | |
| rabid(silly, stupid) | |
| raging(silly, stupid) | |
| ridiculous(simple, silly, stupid, unsound) | |
| silly(simple, stupid, crazy, mad) | |
| unglued(silly, mad, insane, unwise) | |
| unzipped(silly, mad, insane, unwise) | |
| beyond all reason(expression, idiom, silly, unwise) | |
| cockeyed(silly, unwise) | |
| derisory(silly, unwise) | |
| fantastic(silly, unwise) | |
| foolhardy(silly, unwise) | |
| half-baked(simple, silly, unsound, unwise) | |
| harebrained(silly, unwise) | |
| ill-conceived(silly, unwise) | |
| impracticable(silly, unwise) | |
| imprudent(silly, 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> |