- Definitions|1
- Thesaurus|291
- Abbreviations|0
147 entries under adjective topic. ×
| foolish(silly, stupid, fantastic, unwise) | |
| frantic(foolish, fantastic, lunatic, aper) | |
| frenetic(foolish, fantastic) | |
| have nobody home | |
| ill | |
| ill-conceived(wild, silly, foolish, senseless) | |
| illogical(foolish, fantastic) | |
| imprudent(silly, foolish, fantastic, unwise) | |
| invalid(foolish, fantastic) | |
| kinky | |
| looney | |
| ludicrous(silly, foolish, fantastic, unwise) | |
| luny | |
| nonsensical(silly, foolish, fantastic, unwise) | |
| not right upstairs | |
| off one's rocker | |
| off one's trolley | |
| off the rails | |
| out of all reason(expression, idiom, wild, silly) | |
| out of it |
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| APA | Smart Define. (2015). of unsound mind thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/of_unsound_mind/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "of unsound mind thesaurus" https://smartdefine.org/of_unsound_mind/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, of unsound mind thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms>. |
| MLA | Smart Define. "of unsound mind thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms> |