87 entries under foolish topic. ×
| unworkable(silly, fantastic, unwise, impractical) | |
| acting crazy(expression, adjective, silly, crazy) | |
| ape(silly, unwise) | |
| bats in the belfry(expression, idiom, silly, unwise) | |
| batty(silly, unwise, impractical, eccentric) | |
| berserk(silly, unwise) | |
| beyond reason(expression, fantastic, unrealistic) | |
| bonkers(silly, unwise) | |
| cuckoo(silly, unwise) | |
| dingy(silly, unwise) | |
| dippy(silly, unwise) | |
| flipped(silly, unwise) | |
| flipped out(expression, silly, unwise) | |
| fruity(silly, unwise) | |
| hare-brained(adjective, silly, crazy, zany) | |
| mad as a March hare(expression, idiom, silly, unwise) | |
| mad as a hatter(expression, idiom, silly, unwise) | |
| maniacal(silly, unwise) | |
| mentally strange(expression, silly, unwise) | |
| potty(adjective, wild, silly, stupid) |
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| APA | Smart Define. (2016). odd thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/odd/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "odd thesaurus" https://smartdefine.org/odd/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, odd thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/odd/thesaurus/synonyms>. |
| MLA | Smart Define. "odd thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/odd/thesaurus/synonyms> |