- Definitions|2
- Thesaurus|554
- Abbreviations|0
| intensity | |
| kookiness | |
| lowness(quiet, silence, softness) | |
| mindlessness(noun, stupidity, slowness) | |
| muddle-headedness | |
| nonsense | |
| nothingness(noun, sleep, oblivion, coma, insentience) | |
| nuttiness | |
| rashness | |
| raucity | |
| simple-mindedness | |
| simpleness(noun, stupidity, slowness) | |
| softness(quiet, silence) | |
| speech(calm, quiet, reticence) | |
| stolidness | |
| stupidness(noun, stupidity, slowness) | |
| swoon(noun, sleep, nothingness, oblivion, coma) | |
| thickheadedness | |
| thickness | |
| tightness |
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| APA | Smart Define. (2015). dumbness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/dumbness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "dumbness thesaurus" https://smartdefine.org/dumbness/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, dumbness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/dumbness/thesaurus/synonyms>. |
| MLA | Smart Define. "dumbness thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/dumbness/thesaurus/synonyms> |