Jackass
Jackass noun - A person who lacks good sense or judgment.
Usage example: only a jackass would dive into a lake without first checking to see how deep the water is
Numskull
Numskull noun - A stupid person.
Usage example: don't be such a numskull—we can't afford a new car!
Mutual synonyms
Cite this Source
Numskull and Jackass. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/jackass/numskull
Jackass & Numskull. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/jackass/numskull>.
Numskull or Jackass. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/jackass/numskull.
Google Ngram Viewer shows how "jackass" and "numskull" have occurred on timeline