- Definitions|1
- Thesaurus|2.6k
- Abbreviations|0
142 entries under silly topic. ×
| fruity(foolish, unwise) | |
| gung ho(expression, adjective, keen, warm) | |
| keen(adjective, warm, foolish, crazy) | |
| mad as a March hare(expression, idiom, foolish, unwise) | |
| mad as a hatter(expression, idiom, foolish, unwise) | |
| maniacal(foolish, unwise) | |
| mental(foolish, unwise) | |
| mentally strange(expression, foolish, unwise) | |
| moonstruck(foolish, unwise) | |
| nutty as fruitcake(expression, idiom, foolish, unwise) | |
| of unsound mind(expression, idiom, foolish, unwise) | |
| out to lunch(expression, idiom, foolish, unwise) | |
| psycho(foolish, unwise) | |
| round the bend(expression, idiom, foolish, unwise) | |
| schizo(foolish, unwise) | |
| screw loose(expression, foolish, unwise) | |
| unglued(foolish, unwise) | |
| unhinged(foolish, unwise) | |
| unrealistic(foolish, fantastic, unwise, impractical) | |
| unzipped(foolish, unwise) |
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| APA | Smart Define. (2015). harebrained thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/harebrained/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "harebrained thesaurus" https://smartdefine.org/harebrained/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, harebrained thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/harebrained/thesaurus/synonyms>. |
| MLA | Smart Define. "harebrained thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/harebrained/thesaurus/synonyms> |