Idiot
Idiot noun - A stupid person.
Usage example: only an idiot would invest in a company just because a casual acquaintance recommended it
Nitwit is a synonym for idiot (British) in ability topic. In some cases you can use "Nitwit" instead a noun "Idiot", when it comes to topics like fool, moron, nit, very stupid person. colloquial substitute
Nitwit
Nitwit noun - A person who lacks good sense or judgment.
Usage example: don't be a nitwit—wear a seat belt!
Mutual synonyms
How words are described
Cite this Source
Nitwit and Idiot. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/idiot/nitwit
Idiot & Nitwit. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/idiot/nitwit>.
Nitwit or Idiot. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/idiot/nitwit.
Google Ngram Viewer shows how "idiot" and "nitwit" have occurred on timeline