- Definitions|0
- Thesaurus|95
- Abbreviations|0
12 entries under expression topic. ×
| bats in the belfry(adjective, idiom, silly, mad) | |
| flipped out(adjective, silly, foolish, mad) | |
| freaked out(adjective, silly, foolish, mad) | |
| mad as a March hare(idiom, silly, foolish, mad) | |
| mad as a hatter(adjective, idiom, silly, mad) | |
| nutty as fruitcake(adjective, idiom, silly, mad) | |
| of unsound mind(adjective, idiom, silly, mad) | |
| out to lunch(adjective, idiom, silly, mad) | |
| round the bend(adjective, idiom, silly, mad) | |
| screw loose(adjective, silly, foolish, mad) | |
| beyond all reason(idiom, silly, foolish, unwise) | |
| out of all reason(idiom, silly, foolish, unwise) |
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| APA | Smart Define. (1970). mentally strange thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mentally_strange/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "mentally strange thesaurus" https://smartdefine.org/mentally_strange/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 1970, mentally strange thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mentally_strange/thesaurus/synonyms>. |
| MLA | Smart Define. "mentally strange thesaurus" 1 January 1970. Web. 24 September 2026. <https://smartdefine.org/mentally_strange/thesaurus/synonyms> |