Brainless
Vacuous
Vacuous adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a movie that was enthusiastically derided for its vacuous dialogue
Brainless and vacuous are semantically related in empty-headed topic. You can use "Brainless" instead an adjective "Vacuous".
Mutual synonyms
Cite this Source
Vacuous and Brainless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/brainless/vacuous
Brainless & Vacuous. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/brainless/vacuous>.
Vacuous or Brainless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/brainless/vacuous.
Google Ngram Viewer shows how "brainless" and "vacuous" have occurred on timeline