- Definitions|2
- Thesaurus|2.7k
- Abbreviations|0
51 entries under insane topic. ×
| birdbrained(adjective, characteristic, silly, foolish, stupid) | |
| daft(adjective, characteristic, weak, simple, wild) | |
| loony(adjective, characteristic, weak, simple, wild) | |
| daffy(adjective, characteristic, weak, simple, silly) | |
| batty(adjective, characteristic, wild, silly, foolish) | |
| cuckoo(adjective, characteristic, wrong, wild, silly) | |
| dotty(adjective, characteristic, weak, simple, silly) | |
| nutty(adjective, characteristic, weak, simple, wild) | |
| irresponsible(adjective, wrong, wild, strange, silly) | |
| gaga(adjective, distraught, batty) | |
| thick-witted(adjective, foolish, crazy) | |
| demented(adjective, wrong, wild, silly, foolish) | |
| foolhardy(adjective, silly, foolish, stupid, crazy) | |
| around the bend(expression, adjective, idiom, wrong, wild) | |
| bizarre(adjective, wrong, wild, strange, silly) | |
| brainsick(adjective, wrong, wild, crazy, mad) | |
| cracked(adjective, wrong, wild, silly, foolish) | |
| crazed(adjective, wrong, wild, silly, foolish) | |
| crazy as a loon(expression, adjective, idiom, wrong, confused) | |
| derailed(adjective, wrong, wild, silly, foolish) |
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| APA | Smart Define. (2015). fatuous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fatuous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fatuous thesaurus" https://smartdefine.org/fatuous/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, fatuous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fatuous/thesaurus/synonyms>. |
| MLA | Smart Define. "fatuous thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/fatuous/thesaurus/synonyms> |