Birdbrained
Birdbrained adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a group of apparently birdbrained teenagers were clearly bored by the memorial
Dumb is a synonym for birdbrained in empty topic. In some cases you can use "Dumb" instead an adjective "Birdbrained", when it comes to topics like stupid, foolish, very 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
Cite this Source
Dumb and Birdbrained. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/birdbrained/dumb
Birdbrained & Dumb. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/birdbrained/dumb>.
Dumb or Birdbrained. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/birdbrained/dumb.
Google Ngram Viewer shows how "birdbrained" and "dumb" have occurred on timeline