273 entries under adjective topic. ×
| maniac(noun, person, wrong, wild) | |
| nonsensical(knowledge, ability, foolish, crazy) | |
| psycho(noun, person, slang, crazy) | |
| screwball(noun, slang, wild, silly) | |
| deranged(noun, wild, silly, foolish) | |
| kooky(weak, simple, wrong, wild) | |
| madman(noun, person, crazy, mad) | |
| mental(noun, slang, informal, foolish) | |
| cracked(informal, wild, silly, foolish) | |
| loopy(knowledge, ability, informal, foolish) | |
| silly(light, weak, simple, wrong) | |
| crackers | |
| fatuous(weak, simple, wild, strange) | |
| idiotic(weak, simple, knowledge, ability) | |
| loco(noun, slang, insane, sane) | |
| preposterous(weak, simple, wrong, knowledge) | |
| senseless(crazy, mad, odd, insane) | |
| unbalanced(silly, foolish, crazy, sane) | |
| bats | |
| daffy(weak, simple, pleasant, happy) |
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| APA | Smart Define. (2015). loony thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/loony/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, loony thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>. |
| MLA | Smart Define. "loony thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms> |