- Definitions|1
- Thesaurus|2.6k
- Abbreviations|0
151 entries under foolish topic. ×
| potty(adjective, wild, silly, stupid) | |
| puerile(silly, stupid, fantastic, trivial) | |
| screwball(silly, unwise) | |
| unbalanced(silly, unreliable, changeable, unwise) | |
| unreasonable(weak, simple, silly, stupid) | |
| unwise(weak, simple, silly, stupid) | |
| barmy(adjective, careless, silly, stupid) | |
| batty(adjective, keen, warm, slow, wild) | |
| beyond all reason(expression, idiom, silly, fantastic) | |
| bizarre(adjective, careless, silly, stupid) | |
| changeable(adjective, careless, wild, excited) | |
| cockamamy(silly, thoughtless, unwise, unintelligent) | |
| cracked(adjective, wild, silly, stupid) | |
| delirious(silly, unwise) | |
| deranged(adjective, wild, silly, stupid) | |
| derisory(silly, fantastic, unwise, half-baked) | |
| devil-may-care(adjective, careless, wild, immoral) | |
| doltish(weak, simple, silly, thoughtless) | |
| dumb(crazy, impulsive, insane, unintelligent) | |
| eccentric(adjective, keen, warm, wild, strange) |
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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> |