142 entries under insane topic. ×
| babbling | |
| frenetic(adjective, wild, mad, ill, sick) | |
| off one's head(expression, adjective, idiom, mad, odd) | |
| overexcited(adjective, upset, nervous, high, irritable) | |
| unsane(adjective, mad, odd) | |
| vehement(adjective, passionate, cruel, mad, vicious) | |
| around the bend(expression, adjective, idiom, wrong, confused) | |
| dull | |
| extreme(adjective, offensive, enthusiastic, strange, stupid) | |
| flipped out(expression, adjective, upset, wild, strange) | |
| freaked out(expression, adjective, wild, enthusiastic, strange) | |
| mad as a hatter(expression, adjective, idiom, wild, strange) | |
| madding(adjective, informal, mad, odd) | |
| unintelligent(adjective, weak, simple, silly, foolish) | |
| unscrewed(adjective, upset, wild, mad, worried) | |
| agonized(adjective, mad, odd) | |
| birdbrained(foolish, impulsive, impractical, unintelligent) | |
| brain-sick | |
| crazy as a loon(expression, adjective, idiom, sick, confused) | |
| derailed(adjective, wrong, wild, silly, foolish) |
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| APA | Smart Define. (2016). crazy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/crazy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "crazy thesaurus" https://smartdefine.org/crazy/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, crazy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/crazy/thesaurus/synonyms>. |
| MLA | Smart Define. "crazy thesaurus" 3 April 2016. Web. 26 September 2026. <https://smartdefine.org/crazy/thesaurus/synonyms> |