Brainless and Keen

Brainless

Brainless adjective - Not having or showing an ability to absorb ideas readily.
Usage example: a teacher who affirms that there are no brainless students, only lazy ones

Keen is an antonym for brainless.

Nearby Words: brain, brainy

Keen

Keen adjective - Having or showing quickness of mind.
Usage example: readers who were keen enough to realize that the writer was being satirical

Brainless is an antonym for keen.

Nearby Words: keenness, keenly
Cite this Source
Keen and Brainless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/brainless/keen
Brainless & Keen. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/brainless/keen>.
Keen or Brainless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/brainless/keen.
Google Ngram Viewer shows how "brainless" and "keen" have occurred on timeline