Knuckleheaded and Sharp
Opposite meaning words
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
Sharp is an antonym for knuckleheaded.
Sharp
Sharp adjective - Having or showing a practical cleverness or judgment.
Usage example: a sharp customer who wasn't about to be taken in by that smooth-tongued salesman
Knuckleheaded is an antonym for sharp.
Cite this Source
Sharp and Knuckleheaded. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/knuckleheaded/sharp
Knuckleheaded & Sharp. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/knuckleheaded/sharp>.
Sharp or Knuckleheaded. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/knuckleheaded/sharp.
Google Ngram Viewer shows how "knuckleheaded" and "sharp" have occurred on timeline