142 entries under insane topic. ×
| daffy(adjective, weak, simple, informal, silly) | |
| frantic(adjective, upset, wild, cruel, mad) | |
| madman(noun, adjective, person, mad, odd) | |
| unglued(adjective, upset, characteristic, wild, strange) | |
| foolhardy(adjective, characteristic, simple, wild, silly) | |
| gaga(adjective, informal, irrational, sane) | |
| hysterical(adjective, upset, love, keen, rough) | |
| witless(adjective, foolish, mad, odd) | |
| brainsick(adjective, wrong, wild, sick, confused) | |
| of unsound mind(expression, adjective, idiom, wild, strange) | |
| rabid(adjective, concern, wild, silly, foolish) | |
| sick(adjective, enthusiastic, mad, ill, fervent) | |
| bananas(adjective, slang, wild, mad) | |
| dumb(adjective, foolish, impulsive, unintelligent) | |
| frenzied(adjective, wild, silly, foolish, stupid) | |
| loopy(adjective, knowledge, ability, informal, foolish) | |
| neurotic(noun, adjective, upset, nervous, high) | |
| raging(adjective, wild, cruel, silly, foolish) | |
| raving(adjective, upset, wrong, wild, silly) | |
| reckless(adjective, silly, foolish, stupid, mad) |
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| APA | Smart Define. (2016). crazy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/crazy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "crazy thesaurus" https://smartdefine.org/crazy/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, crazy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/crazy/thesaurus/synonyms>. |
| MLA | Smart Define. "crazy thesaurus" 3 April 2016. Web. 25 September 2026. <https://smartdefine.org/crazy/thesaurus/synonyms> |