8
wisdom(noun, understanding, power, spirit, ability)
7
mental capacity(noun, expression, idiom, intelligence, intellect)
7
Einstein(noun, person, ability, intelligence, wisdom)
7
bean(noun, verb, charge, beat, hurt)
7
geek(noun, person, expert, intellectual, scholar)
7
nous
6
encephalon(noun, mind, intelligence)
6
perception(noun, power, spirit, mind, reason)
6
psyche(noun, understanding, power, spirit, mind)
6
acumen(noun, understanding, ability, mind, sense)
6
grey matter(noun, thing)
6
pate(noun, mind, head, intellect, nut)
6
rationality(noun, understanding, mind, sense, intelligence)
6
reasoning(noun, understanding, power, spirit, mind)
6
sagacity(noun, ability, intelligence, wisdom, inspiration)
6
thought(noun, power, spirit, mind, reason)
6
whiz(noun, expert, intellectual, genius, specialist)
5
sage(noun, person, intellectual, principal, fellow)
5
brainiac
5
cerebrum(noun, mind, intelligence, bean)
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APASmart Define. (2016). brain thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/brain/thesaurus/synonyms
ChicagoSmart Define. 2016. "brain thesaurus" https://smartdefine.org/brain/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, brain thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/brain/thesaurus/synonyms>.
MLASmart Define. "brain thesaurus" 19 February 2016. Web. 20 September 2026. <https://smartdefine.org/brain/thesaurus/synonyms>