- Definitions|1
- Thesaurus|1.8k
- Abbreviations|0
105 entries under noun topic. ×
| fruitcake(character, crazy, mad, eccentric) | |
| geek(freak, oddball) | |
| nut case(expression, idiom, character, crazy) | |
| zealot(person, crazy, original, nut) | |
| loon(informal, fool, crazy, mad) | |
| wacko(character, crazy, eccentric, lunatic) | |
| ding-a-ling(character, slang, wise, dissentient) | |
| dingbat(character, slang, crazy, wise) | |
| fiend(person, crazy, nut, fanatic) | |
| idiot | |
| madcap(adjective, person, madness, insanity) | |
| neurotic(adjective, mad, lunatic, schizophrenic) | |
| nutter | |
| crackbrain | |
| flake(crazy, mad, eccentric, freak) | |
| fool | |
| imbecile | |
| jackass(adjective, fool, foolish) | |
| madwoman(character, crazy, loony, dissentient) | |
| nitwit(adjective, fool, foolish) |
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| APA | Smart Define. (2015). crackpot thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/crackpot/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "crackpot thesaurus" https://smartdefine.org/crackpot/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, crackpot thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/crackpot/thesaurus/synonyms>. |
| MLA | Smart Define. "crackpot thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/crackpot/thesaurus/synonyms> |