9
blockheaded(adjective, dull, slow, stupid)
8
thickheaded
6
boneheaded
6
loggerheaded
5
dense(adjective, dull, slow, stupid)
5
thick
4
doltish(dull, slow, stupid)
4
stupid(dull, slow)
4
thick-skulled
3
wooden-headed
2
dull(adjective, slow, stupid)
2
dumb(dull, slow, stupid)
1
addlebrained
1
anserine
1
blunderheaded
1
brainless
1
compact
1
daffy
1
daft
1
deep
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APASmart Define. (2015). fatheaded thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fatheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatheaded thesaurus" https://smartdefine.org/fatheaded/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fatheaded thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fatheaded/thesaurus/synonyms>.
MLASmart Define. "fatheaded thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/fatheaded/thesaurus/synonyms>