Boneheaded
Boneheaded adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a product with a warning label that even the most boneheaded consumer should be able to understand
Slow is a synonym for boneheaded in stupid topic. In some cases you can use "Slow" instead an adjective "Boneheaded".
Slow
Slow adjective - Not having or showing an ability to absorb ideas readily.
Usage example: the slower students worked together in a separate group
Boneheaded is a synonym for slow in dense topic. You can use "Boneheaded" instead an adjective "Slow". informal substitute
Mutual synonyms
Cite this Source
Slow and Boneheaded. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/boneheaded/slow
Boneheaded & Slow. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/boneheaded/slow>.
Slow or Boneheaded. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/boneheaded/slow.
Google Ngram Viewer shows how "boneheaded" and "slow" have occurred on timeline