Dumb
Dumb adjective - Not having or showing an ability to absorb ideas readily.
Usage example: don't call him dumb just because he makes the occasional mistake like the rest of us
Lunkheaded and dumb are semantically related. In some cases you can use "Lunkheaded" instead an adjective "Dumb".
Lunkheaded
Lunkheaded adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a lunkheaded but good-hearted man
Mutual synonyms
Cite this Source
Lunkheaded and Dumb. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/dumb/lunkheaded
Dumb & Lunkheaded. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/dumb/lunkheaded>.
Lunkheaded or Dumb. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/dumb/lunkheaded.
Google Ngram Viewer shows how "dumb" and "lunkheaded" have occurred on timeline