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
Fast
Fast adjective - Having or showing quickness of mind.
Usage example: I don't know how to operate this machine, but I'm a fast learner
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 -
Regis meets the people behind The Conspiracy in a fancy restaurant serving human meat... though he is assured that is only meat taken from brainless, fast-grown clones who where never actually alive, making it all perfectly legal.
Source: Video Game / Technobabylon -
Oh, and they can instantaneously generate endless amounts of brainless robot Mooks who have razor sharp claws that cut metal like hot butter, are near impervious to conventional weaponry, and are really really fast and insanely strong.
Source: Implacable Man
Cite this Source
Fast and Brainless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/brainless/fast
Brainless & Fast. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/brainless/fast>.
Fast or Brainless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/brainless/fast.
Google Ngram Viewer shows how "brainless" and "fast" have occurred on timeline