- Definitions|1
- Thesaurus|2.3k
- Abbreviations|0
| fool | |
| foolhardy(foolish, crazy, insane, rash, risky) | |
| frivolous(adjective, simple, slight, silly, foolish) | |
| futile(adjective, dull, simple, slow, silly) | |
| gauche | |
| green | |
| groping | |
| gullible(adjective, dull, simple, slow, silly) | |
| half-assed | |
| half-baked(adjective, dull, weak, simple, slight) | |
| half-wit(adjective, unintellectual) | |
| halfwitted | |
| harebrained(weak, simple, silly, foolish, crazy) | |
| heedless(adjective, careless, silly, foolish, senseless) | |
| idiot | |
| ill-advised(dull, weak, simple, silly, foolish) | |
| immature(silly, foolish, rash, absurd, risky) | |
| imprudent(weak, simple, silly, foolish, thoughtless) | |
| inadept | |
| inapprehensible |
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| APA | Smart Define. (2016). unintelligent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unintelligent/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unintelligent thesaurus" https://smartdefine.org/unintelligent/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, unintelligent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unintelligent/thesaurus/synonyms>. |
| MLA | Smart Define. "unintelligent thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/unintelligent/thesaurus/synonyms> |