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
Dense is a synonym for boneheaded in ignorant topic. In some cases you can use "Dense" instead an adjective "Boneheaded", when it comes to topics like stupid.
Dense
Dense adjective - Not having or showing an ability to absorb ideas readily.
Usage example: she accused him of being dense when he didn't seem to understand her at first
Mutual synonyms
Cite this Source
Dense and Boneheaded. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/boneheaded/dense
Boneheaded & Dense. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/boneheaded/dense>.
Dense or Boneheaded. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/boneheaded/dense.
Google Ngram Viewer shows how "boneheaded" and "dense" have occurred on timeline