| senseless(adjective, insane) | |
| whacky | |
| wrong(adjective, insane, sane) | |
| bughouse | |
| crackbrained | |
| dippy(adjective, slang, crazy, mad) | |
| disturbed(crazy, mad, sick, insane, psychiatric) | |
| eccentric(adjective, crazy, mad, off, dotty) | |
| engine | |
| frenzied(adjective, crazy, insane, irrational, distracted) | |
| goofy | |
| maddened(adjective, crazy, insane, irrational, distracted) | |
| out to lunch | |
| stark raving mad(expression, adjective, idiom, crazy, sick) | |
| unscrewed(adjective, slang, crazy, mad) | |
| unstable(mad, insane, psychiatric) | |
| bedlamite | |
| bizarre(adjective, insane) | |
| chapped | |
| crazy as a loon(expression, adjective, idiom, crazy, sick) |
For more, visit
Loco on
Power Thesaurus
| APA | Smart Define. (2015). loco thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/loco/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "loco thesaurus" https://smartdefine.org/loco/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, loco thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/loco/thesaurus/synonyms>. |
| MLA | Smart Define. "loco thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/loco/thesaurus/synonyms> |