173 entries under foolish topic. ×
| brainless(adjective, weak, simple, silly) | |
| distraught(adjective, wrong, stupid, crazy) | |
| moonstruck(adjective, silly, stupid, insane) | |
| of unsound mind(expression, adjective, idiom, stupid) | |
| out to lunch(expression, adjective, idiom, silly) | |
| ridiculous(adjective, light, weak, simple, wrong) | |
| berserk(adjective, silly, crazy, unwise) | |
| dopey(adjective, knowledge, slang, ability) | |
| off-the-wall(adjective, wrong, pleasant, happy) | |
| schizo(noun, adjective, slang, sick) | |
| blockheaded(adjective, impractical, half-baked, doomed) | |
| half-witted(adjective, weak, simple, silly) | |
| jerky(adjective, light, knowledge, slang, ability) | |
| unsound(adjective, unreasonable, sane, illogical) | |
| wrong(adjective, unreasonable, sane, illogical) | |
| cockamamie(adjective, weak, simple, wrong, silly) | |
| dim-witted | |
| doltish(adjective, weak, simple, careless, silly) | |
| ignorant(adjective, impractical, half-baked, doomed) | |
| odd(adjective, wild, strange, silly) |
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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> |