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
Dumb and boneheaded are semantically related. in ignorant topic. In some cases you can use "Dumb" instead an adjective "Boneheaded", when it comes to topics like stupid.
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
Mutual synonyms
Both words in one sentence
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Too Dumb to Live: Penny Arcade, Yahtzee, and Nate himself have all commented on how the mooks are boneheaded enough to get into gunfights with Nate in incredibly stupid situations.
Source: Video Game / Uncharted -
This trope was also used in "The Comeback" when George explains to Elaine and Jerry that he will not dumb his joke down "For some boneheaded audience", which cues everyone in the diner to look at him.
Source: Viewers Are Morons -
Too Dumb to Live: Various contestants have pulled unbelievably boneheaded strategies.
Source: Series / Survivor
Cite this Source
Dumb and Boneheaded. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/boneheaded/dumb
Boneheaded & Dumb. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/boneheaded/dumb>.
Dumb or Boneheaded. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/boneheaded/dumb.
Google Ngram Viewer shows how "boneheaded" and "dumb" have occurred on timeline