97 entries under foolish topic. ×
| inane(simple, silly, unsound, unwise) | |
| inappropriate(silly, unwise) | |
| ludicrous(silly, unwise) | |
| nonsensical(silly, unwise) | |
| out of all reason(expression, idiom, silly, unwise) | |
| outlandish(silly, unwise) | |
| outrageous(silly, unwise) | |
| peculiar(unusual, silly, unwise, weird) | |
| puerile(silly, unwise) | |
| short-sighted(silly, unwise) | |
| stupid(silly, unwise) | |
| unrealistic(silly, unwise) | |
| unreasonable(silly, stupid) | |
| unwise | |
| unworkable(silly, unwise) | |
| weird(unusual, silly, unwise, abnormal) | |
| zany(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> |