- Definitions|0
- Thesaurus|163
- Abbreviations|1
14 entries under crackbrained topic. ×
| brainsick(adjective, crazy, sick, insane, sane) | |
| loco(adjective, crazy, sick, insane, sane) | |
| around the bend(expression, adjective, wrong, wild, lunatic) | |
| bananas(adjective, sane, off, hacked, lunatic) | |
| crazy as a loon(expression, adjective, crazy, sick, lunatic) | |
| maniac(adjective, crazy, sick, sane, hacked) | |
| not all there(expression, adjective, crazy, sick, lunatic) | |
| nutty as a fruitcake(expression, adjective, crazy, sick, lunatic) | |
| schizophrenic(adjective, wrong, wild, hacked, lunatic) | |
| sick in the head(expression, adjective, crazy, sick, lunatic) | |
| stark raving mad(expression, adjective, crazy, sick, lunatic) | |
| unscrewed(frantic, hacked, unglued, lunatic, potty) | |
| whacko(frantic, hacked, unglued, lunatic, potty) | |
| schizzo(frantic, hacked, unglued, lunatic, well-built) |
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| APA | Smart Define. (2011). mad as a hatter thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mad_as_a_hatter/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "mad as a hatter thesaurus" https://smartdefine.org/mad_as_a_hatter/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2011, mad as a hatter thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mad_as_a_hatter/thesaurus/synonyms>. |
| MLA | Smart Define. "mad as a hatter thesaurus" 23 May 2011. Web. 30 September 2026. <https://smartdefine.org/mad_as_a_hatter/thesaurus/synonyms> |