Knuckleheaded
Knuckleheaded adjective - Not having or showing an ability to absorb ideas readily.
Usage example: the editorial lampooned the knuckleheaded legislation, which was yet another attempt by the government to protect people from themselves
Simple and knuckleheaded are semantically related. In some cases you can use "Simple" instead an adjective "Knuckleheaded".
Simple
Simple adjective - Not having or showing an ability to absorb ideas readily.
Usage example: don't be so quick to characterize people who have trouble with computers as simple
Knuckleheaded and simple are semantically related. Sometimes you can use "Knuckleheaded" instead an adjective "Simple".
Mutual synonyms
Related pairs
Cite this Source
Simple and Knuckleheaded. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/knuckleheaded/simple
Knuckleheaded & Simple. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/knuckleheaded/simple>.
Simple or Knuckleheaded. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/knuckleheaded/simple.
Google Ngram Viewer shows how "knuckleheaded" and "simple" have occurred on timeline