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
Witless and knuckleheaded are semantically related. In some cases you can use "Witless" instead an adjective "Knuckleheaded".
Witless
Witless adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a dog so witless that it is barely trainable
Knuckleheaded and witless are semantically related. Sometimes you can use "Knuckleheaded" instead an adjective "Witless".
Mutual synonyms
Related pairs
Cite this Source
Witless and Knuckleheaded. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/knuckleheaded/witless
Knuckleheaded & Witless. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/knuckleheaded/witless>.
Witless or Knuckleheaded. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/knuckleheaded/witless.
Google Ngram Viewer shows how "knuckleheaded" and "witless" have occurred on timeline