273 entries under adjective topic. ×
| haywire | |
| irrational(weak, simple, careless, wild) | |
| mentally ill(expression, idiom, sane, unwell) | |
| non compos mentis(noun, expression, idiom, law) | |
| tomfool(knowledge, ability, foolish) | |
| unhinged(silly, foolish, stupid, unwise) | |
| cockeyed(knowledge, ability, informal, silly) | |
| eccentric(noun, wild, strange, silly) | |
| inane(foolish, stupid, fantastic, senseless) | |
| ludicrous(light, foolish, stupid, crazy) | |
| round the bend(expression, idiom, silly, foolish) | |
| wild(wrong, strange, silly, foolish) | |
| brainless(weak, simple, silly, foolish) | |
| certifiable | |
| delirious(crazy, mad, odd, insane) | |
| distraught(wrong, foolish, stupid, crazy) | |
| kookie | |
| looney | |
| moonstruck(silly, foolish, stupid, insane) | |
| not all there(noun, idiom, slang, sick) |
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| APA | Smart Define. (2015). loony thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/loony/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, loony thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>. |
| MLA | Smart Define. "loony thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms> |