- Definitions|1
- Thesaurus|866
- Abbreviations|0
| crazy(adjective, insane, irrational, mental) | |
| insane(adjective, crazy, sick, irrational) | |
| psychotic(adjective, crazy, insane, mental) | |
| unbalanced(adjective, crazy, sick, insane) | |
| mental(adjective, crazy, insane, irrational) | |
| demented(adjective, insane, irrational, frenzied) | |
| psychopathic(adjective, crazy, insane, irrational) | |
| manic-depressive(adjective, insane) | |
| flipped-out(adjective, insane, manic-depressive) | |
| mentally deranged(expression, adjective, insane, manic-depressive) | |
| over the edge(expression, adjective, idiom, insane) |
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| APA | Smart Define. (2016). certifiable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/certifiable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "certifiable thesaurus" https://smartdefine.org/certifiable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, certifiable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/certifiable/thesaurus/synonyms>. |
| MLA | Smart Define. "certifiable thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/certifiable/thesaurus/synonyms> |