| delirious(adjective, silly, foolish, crazy, mad) | |
| dippy(adjective, silly, foolish, mad, insane) | |
| eccentric(adjective, unusual, silly, foolish, unwise) | |
| flipped out(expression, silly, foolish, crazy, mad) | |
| freaked out(expression, silly, foolish, mad, insane) | |
| ghostly | |
| goofy(adjective, silly, foolish, unwise) | |
| heavy(adjective, mind, rational, supernatural, spiritual) | |
| hyperphysical | |
| hysterical(adjective, psychical) | |
| ideal(adjective, intellectual, abstract, impractical, unreal) | |
| imaginative(adjective, mind, rational, supernatural, spiritual) | |
| intimate(adjective, inward) | |
| inward | |
| loopy | |
| luny(noun, adjective, slang, sick, mad person) | |
| mad as a March hare(expression, idiom, silly, foolish, mad) | |
| mad as a hatter(expression, idiom, silly, foolish, mad) | |
| maddened | |
| manic |
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| APA | Smart Define. (2015). mental thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mental/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mental thesaurus" https://smartdefine.org/mental/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, mental thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mental/thesaurus/synonyms>. |
| MLA | Smart Define. "mental thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/mental/thesaurus/synonyms> |