4
rhyme(noun, idiom, reason)
4
senses(noun, understanding, mind, sense, intelligence)
3
acumen(noun, understanding, knowledge, mind, reason)
3
caliber
3
conception
3
deduction(noun, understanding, mind, reason, connection)
3
discernment(noun, understanding, mind, sense, intelligence)
3
genius(noun, wisdom, intellect, discrimination, prudence)
3
good(noun, understanding, sense, short)
3
grounds(noun, strength, cogency)
3
intellectuality
3
lucid interval(expression, idiom, sanity)
3
mental health(noun, health, state, mind)
3
normalcy(noun, sanity)
3
percipience(noun, wisdom, intellect, discrimination, prudence)
3
practicality(knowledge, mind, reason, sense, intelligence)
3
prudence(noun, understanding, knowledge, mind, reason)
3
right mind(expression, idiom, wit, prudence, stability)
3
sapience(noun, understanding, mind, intelligence, balance)
3
sober-mindedness(noun, sanity)
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APASmart Define. (2015). rationality thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rationality/thesaurus/synonyms
ChicagoSmart Define. 2015. "rationality thesaurus" https://smartdefine.org/rationality/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, rationality thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rationality/thesaurus/synonyms>.
MLASmart Define. "rationality thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/rationality/thesaurus/synonyms>