- Definitions|2
- Thesaurus|390
- Abbreviations|0
| feather-brained | |
| guileless(adjective, simple, honest, straightforward, innocent) | |
| gullible(adjective, simple, silly, stupid, fresh) | |
| halfwitted | |
| hare-brained | |
| inane(adjective, silly, foolish, stupid, green) | |
| ingenuous(adjective, simple, straightforward, fresh, innocent) | |
| innocent(adjective, simple, plain, straightforward, sincere) | |
| innocuous(simple, fresh, innocent, ignorant, harmless) | |
| late(adjective, backward) | |
| lumpish | |
| mad | |
| mindless(adjective, silly, stupid, green, fat) | |
| scatterbrained(adjective, simple, slow, foolish, stupid) | |
| shallow(adjective, simple, slow, silly, stupid) | |
| simplistic | |
| thickheaded | |
| unsophisticated(adjective, simple, straightforward, innocent, naive) | |
| aboveboard(simple, plain, straightforward, fresh, innocent) | |
| addled(adjective, simple, slow, stupid, boring) |
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| APA | Smart Define. (2013). simple-minded thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/simple-minded/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "simple-minded thesaurus" https://smartdefine.org/simple-minded/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2013, simple-minded thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/simple-minded/thesaurus/synonyms>. |
| MLA | Smart Define. "simple-minded thesaurus" 17 October 2013. Web. 21 September 2026. <https://smartdefine.org/simple-minded/thesaurus/synonyms> |