| scatty | |
| schizo(calm, sound) | |
| screw-loose | |
| screwball | |
| sick | |
| snob | |
| strange | |
| troubled(adjective, happy, certain) | |
| undiplomatic | |
| unfounded | |
| unintelligent(adjective, stupid, insane) | |
| unwarranted | |
| wacko | |
| weak | |
| whacky | |
| zany | |
| aberrant | |
| abnormal | |
| adventurous | |
| aerial |
For more, visit
Sane on
Power Thesaurus
| APA | Smart Define. (2015). sane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sane/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "sane thesaurus" https://smartdefine.org/sane/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, sane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sane/thesaurus/antonyms>. |
| MLA | Smart Define. "sane thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/sane/thesaurus/antonyms> |