- Definitions|1
- Thesaurus|2.6k
- Abbreviations|0
119 entries under thoughtless topic. ×
| feckless(careless, wild, immoral, negligent) | |
| feebleminded(weak, simple, silly, foolish) | |
| fickle(adjective, careless, excited, foolish, unstable) | |
| fiery(careless, impulsive, reckless, hasty) | |
| frenzied(careless, impulsive, reckless, hasty) | |
| furious(careless, impulsive, reckless, hasty) | |
| hasty(careless, wild, impulsive, reckless) | |
| headstrong(adjective, careless, bold, impulsive) | |
| hotheaded(careless, wild, silly, crazy) | |
| ill-advised(weak, simple, careless, wild, foolish) | |
| ill-considered(adjective, careless, silly, foolish, trivial) | |
| immature(careless, silly, stupid, impulsive) | |
| impetuous(adjective, careless, bold, impulsive) | |
| impulsive(careless, silly, crazy, unreliable) | |
| injudicious(weak, simple, careless, silly, foolish) | |
| insuppressible(careless, impulsive, reckless, hasty) | |
| jumping to conclusions(expression, idiom, careless, impulsive) | |
| nerdy(weak, simple, silly, foolish) | |
| overhasty(careless, impulsive, reckless, hasty) | |
| passionate(careless, impulsive, reckless, hasty) |
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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> |