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
Simple is a synonym for brainless in characteristic topic. In some cases you can use "Simple" instead an adjective "Brainless", when it comes to topics like stupid, foolish, mindless.
Simple
Simple adjective - Lacking in education or the knowledge gained from books.
Usage example: the fact that he didn't go to college doesn't mean he's simple
Brainless is a synonym for simple in feeble-minded topic. You can use "Brainless" instead an adjective "Simple", if it concerns topics such as characteristic, foolish, mindless.
Mutual synonyms
Both words in one sentence
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Eric Schlosser expounds on the plight of fast food employees in Fast Food Nation, noting that McDonald's entire plan is to make the job so simple and brainless that they can teach a new employee in 15 minutes, making any given employee totally expendable.
Source: Burger Fool
Cite this Source
Simple and Brainless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/brainless/simple
Brainless & Simple. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/brainless/simple>.
Simple or Brainless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/brainless/simple.
Google Ngram Viewer shows how "brainless" and "simple" have occurred on timeline