53 entries under simple topic. ×
| blockheaded(adjective, dull, ability, slow) | |
| dimwitted(adjective, dull, slang, ability) | |
| witless(adjective, dull, slow, silly) | |
| ignorant(adjective, dull, slow, silly) | |
| vacuous(adjective, slow, stupid, empty) | |
| empty-headed(adjective, silly, foolish, stupid) | |
| backward(adjective, dull, slow, silly) | |
| daft(adjective, slow, silly, foolish) | |
| half-baked(adjective, dull, slow, silly) | |
| imbecile(adjective, dull, silly, foolish) | |
| senseless(adjective, dull, slow, silly) | |
| thickheaded(adjective, ability, slow, stupid) | |
| weak-minded(adjective, dull, slow, stupid) | |
| boneheaded(adjective, slow, stupid, impulsive) | |
| mindless(adjective, dull, slow, silly) | |
| simple-minded(adjective, dull, slow, silly) | |
| daffy(adjective, slow, silly, foolish) | |
| lumpish(adjective, dull, slow, heavy) | |
| oafish(adjective, dull, slow, stupid) | |
| insensate(adjective, dull, slow, informal) |
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| APA | Smart Define. (2016). dumb thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dumb/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "dumb thesaurus" https://smartdefine.org/dumb/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, dumb thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dumb/thesaurus/synonyms>. |
| MLA | Smart Define. "dumb thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/dumb/thesaurus/synonyms> |