Brain
Brain noun - A very smart person.
Usage example: the brains all sit together at lunch
Idiot
Idiot noun - A stupid person.
Usage example: only an idiot would invest in a company just because a casual acquaintance recommended it
How words are described
Both words in one sentence
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Brian turns into an idiot thanks to a tumor in his brain, and he refuses to get it removed as he prefers being an idiot.
Source: "Flowers for Algernon" Syndrome -
Subverted in Dragon Bones: Ward pretends that a violent beating by his father caused brain damage to make his father believe he's a harmless idiot.
Source: Childhood Brain Damage -
One episode reveals that Homer is an idiot because he stuck a crayon up his nose as a child and got it jammed into his brain.
Source: Childhood Brain Damage
Cite this Source
Idiot and Brain. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/brain/idiot
Brain & Idiot. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/brain/idiot>.
Idiot or Brain. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/brain/idiot.
Google Ngram Viewer shows how "brain" and "idiot" have occurred on timeline