- Definitions|0
- Thesaurus|251
- Abbreviations|0
104 entries under adjective topic. ×
| hasty | |
| headlong | |
| hotheaded | |
| ill-considered | |
| impetuous | |
| improvident | |
| incautious | |
| indiscreet | |
| lunatic(silly, foolish, crazy, zany) | |
| negligent | |
| odd(silly, foolish, crazy, zany) | |
| off the wall(expression, idiom, silly, crazy) | |
| precipitate | |
| quixotic | |
| screwball | |
| unconsidered | |
| unmindful | |
| unpredictable(silly, foolish, crazy, zany) | |
| unthinking | |
| unwise |
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| APA | Smart Define. (2013). hare-brained thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hare-brained/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "hare-brained thesaurus" https://smartdefine.org/hare-brained/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2013, hare-brained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hare-brained/thesaurus/synonyms>. |
| MLA | Smart Define. "hare-brained thesaurus" 19 May 2013. Web. 24 September 2026. <https://smartdefine.org/hare-brained/thesaurus/synonyms> |