- Definitions|1
- Thesaurus|776
- Abbreviations|0
20 entries under adjective topic. ×
| crazy(irrational, hysterical, insanity, psychotic) | |
| idiotic | |
| demented | |
| imbecile | |
| barmy | |
| cockeyed | |
| foolish(crazy, irrational, hysterical, psychotic) | |
| psychopathic(crazy, hysterical, psychotic) | |
| silly | |
| stupid | |
| unscrupulous | |
| absurd | |
| derisory | |
| dippy | |
| fatuous | |
| goofy | |
| mindless | |
| ridiculous | |
| unwise | |
| zany |
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| APA | Smart Define. (2015). crackbrained thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/crackbrained/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "crackbrained thesaurus" https://smartdefine.org/crackbrained/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, crackbrained thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/crackbrained/thesaurus/synonyms>. |
| MLA | Smart Define. "crackbrained thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/crackbrained/thesaurus/synonyms> |