110 entries under rational topic. ×

3
reasonable(adjective, sound, keen, sensible)
3
recondite(adjective, intellectual, enlightened, studious)
3
scholarly(adjective, intelligent, thoughtful, serious)
3
smart(adjective, intellectual)
2
analytical(adjective, sound, reasonable, sensible)
2
bookish(adjective, intelligent, thoughtful, serious)
2
heavy(intellectual, supernatural, spiritual, paranormal)
2
inner(emotional, intellectual, supernatural, mental)
2
intellective(adjective, intelligent, wise, emotional)
2
learned(verb, intelligent, thoughtful, serious)
2
logical(adjective, sound, reasonable, sensible)
2
phrenic(intelligent, thoughtful, knowledgeable, intellectual)
2
subconscious(adjective, intellect, emotional, intellectual)
2
subliminal(adjective, intellect, intellectual, supernatural)
1
absorbed(adjective, reasonable, keen, deep)
1
abstract(adjective, psychological)
1
academic(adjective, intelligent, serious, knowledgeable)
1
advisable(adjective, sound, sensible, intelligent)
1
all there(expression, adjective, sound, reasonable, sensible)
1
arguable(adjective, sound, sensible, intelligent)
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APASmart Define. (2015). cerebral thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/cerebral/thesaurus/synonyms
ChicagoSmart Define. 2015. "cerebral thesaurus" https://smartdefine.org/cerebral/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, cerebral thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/cerebral/thesaurus/synonyms>.
MLASmart Define. "cerebral thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/cerebral/thesaurus/synonyms>