- Definitions|1
- Thesaurus|190
- Abbreviations|0
| unsound(simple, silly, foolish, crazy, mad) | |
| absurd | |
| anomaly | |
| ape(crazy, insane, irrational, unglued, well-built) | |
| barmy | |
| brutish(unglued, well-built, potty) | |
| caveman(unglued, well-built, potty) | |
| cockeyed | |
| codger | |
| crackpot | |
| crank | |
| crazed | |
| delirious | |
| demented | |
| ding-a-ling | |
| dingbat | |
| disarranged(crazy, insane, irrational, distracted) | |
| disconcerted(crazy, insane, irrational, distracted, frantic) | |
| disordered(crazy, insane, irrational, distracted) | |
| displaced(crazy, insane, irrational, distracted) |
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| APA | Smart Define. (2013). whacko thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/whacko/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "whacko thesaurus" https://smartdefine.org/whacko/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2013, whacko thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/whacko/thesaurus/synonyms>. |
| MLA | Smart Define. "whacko thesaurus" 17 June 2013. Web. 24 September 2026. <https://smartdefine.org/whacko/thesaurus/synonyms> |