- Definitions|1
- Thesaurus|291
- Abbreviations|0
| irresponsible(adjective, silly, foolish, stupid, crazy) | |
| neurotic | |
| not right | |
| nutty as a fruitcake(expression, adjective, off, lunatic, dotty) | |
| off one's chump | |
| paranoiac | |
| preposterous(adjective, silly, foolish, stupid, crazy) | |
| queer | |
| rabid(adjective, silly, foolish, stupid, crazy) | |
| raging(adjective, silly, foolish, stupid, crazy) | |
| reasonless | |
| schizoid | |
| screwball(adjective, silly, foolish, mad, insane) | |
| sick | |
| sick in the head(expression, adjective, wrong, hacked, lunatic) | |
| silly(adjective, foolish, stupid, mad, insane) | |
| stark raving mad(expression, adjective, off, lunatic, dotty) | |
| tetched | |
| unscrewed(frantic, hacked, unglued, lunatic, potty) | |
| unzipped(adjective, silly, foolish, mad, insane) |
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| APA | Smart Define. (2015). of unsound mind thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/of_unsound_mind/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "of unsound mind thesaurus" https://smartdefine.org/of_unsound_mind/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, of unsound mind thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms>. |
| MLA | Smart Define. "of unsound mind thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms> |