10
simpleton(noun, imbecile, dolt)
9
idiot
8
blockhead(noun, character, fool, eccentric, imbecile)
8
dolt(noun, imbecile)
8
dunce(noun, prompt, imbecile, dolt, simpleton)
8
fool
7
ninny
7
nitwit(noun, imbecile, dolt)
6
ass(noun, person)
6
halfwit(noun, fool)
4
numskull
4
clod
4
dim-wit
4
dope(noun, imbecile, dolt)
4
imbecile(noun, dull, simple, limited, dolt)
4
jerk(noun, prompt, imbecile, dolt, knucklehead)
4
moron
4
nincompoop
4
twit(noun, prompt, imbecile, dolt, knucklehead)
3
birdbrain
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APASmart Define. (2015). numbskull thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/numbskull/thesaurus/synonyms
ChicagoSmart Define. 2015. "numbskull thesaurus" https://smartdefine.org/numbskull/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, numbskull thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/numbskull/thesaurus/synonyms>.
MLASmart Define. "numbskull thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/numbskull/thesaurus/synonyms>