Brain
Brain noun - A very smart person.
Rationality and brain are semantically related. In some cases you can use "Rationality" instead a noun "Brain".
Rationality
Rationality noun - The state of having good sense and sound judgment.
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Synonyms for Rationality
Brain and rationality are semantically related. Sometimes you can use "Brain" instead a noun "Rationality".
Mutual synonyms
Related pairs
- understanding and brain
- understanding and rationality
- sense and brain
- sense and rationality
- thought and brain
- thought and rationality
- reasoning and brain
- reasoning and rationality
- mind and brain
- mind and rationality
- perception and brain
- perception and rationality
- discernment and brain
- discernment and rationality
Both words in one sentence
- Harry has conversations with his brain when trying to escape from Azkaban in Harry Potter and the Methods of Rationality.
Source: Organ Autonomy -
Papa Wolf: The Atom throws his reserved rationality to the wind bloodstream and becomes a raging machine of fury when Brain's microorganisms kill the makeshift steed Platelet.
- It's lampshaded within the plot saying that smart villains hate needless complications and that a brain tumor is destroying his rationality and caused him to think up a plan that's so incredibly convoluted.
Source: Fan Fic / Titan Legends
Cite this Source
Rationality and Brain. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/brain/rationality
Brain & Rationality. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/brain/rationality>.
Rationality or Brain. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/brain/rationality.
Google Ngram Viewer shows how "brain" and "rationality" have occurred on timeline