Birdbrained and Empty-headed

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

Empty-headed is a synonym for birdbrained in ability topic. In some cases you can use "Empty-headed" instead an adjective "Birdbrained", when it comes to topics like silly, fickle, giddy, not thinking clearly.

Empty-headed

Empty-headed adjective - Not having or showing an ability to absorb ideas readily.
Usage example: she sometimes plays the stereotypical empty-headed blonde to trick people into underestimating her

Birdbrained is a synonym for empty-headed in ability topic. You can use "Birdbrained" instead an adjective phrase "Empty-headed", if it concerns topics such as stupid.
Cite this Source
Empty-headed and Birdbrained. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/birdbrained/empty-headed
Birdbrained & Empty-headed. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/birdbrained/empty-headed>.
Empty-headed or Birdbrained. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/birdbrained/empty-headed.