Birdbrain
Birdbrain noun - A silly flighty person.
Usage example: those birdbrains who eagerly adopt every fad diet that comes along
Nitwit and birdbrain are semantically related. in fool topic. In some cases you can use "Nitwit" instead a noun "Birdbrain", when it comes to topics like stupid person, stupid or ridiculous person.
Nitwit
Nitwit noun - A person who lacks good sense or judgment.
Usage example: don't be a nitwit—wear a seat belt!
Mutual synonyms
Cite this Source
Nitwit and Birdbrain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/birdbrain/nitwit
Birdbrain & Nitwit. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/birdbrain/nitwit>.
Nitwit or Birdbrain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/birdbrain/nitwit.
Google Ngram Viewer shows how "birdbrain" and "nitwit" have occurred on timeline