52 entries under rational topic. ×

2
wise(adjective, reasonable, keen, deep)
2
wistful(adjective, reasonable, keen, thought, deep)
1
calculating(adjective, reasonable, keen, deep)
1
cerebral(adjective, reasonable, keen, intelligent)
1
cogitative(adjective, reasonable, keen, deep)
1
discerning(adjective, reasonable, keen, deep)
1
farsighted(adjective, reasonable, keen, deep)
1
highbrow(adjective, intelligent, thoughtful, serious)
1
keen(adjective, reasonable, deep, thoughtful)
1
levelheaded(adjective, reasonable, keen, deep)
1
logical(adjective, sound, reasonable, keen, solid)
1
melancholy(adjective, reasonable, keen, deep)
1
musing(adjective, reasonable, keen, deep)
1
pondering(adjective, reasonable, keen, deep)
1
rapt(adjective, reasonable, keen, deep)
1
reasonable(adjective, sound, keen, solid, deep)
1
reasoning(adjective, reasonable, keen, deep)
1
reflecting(adjective, reasonable, keen, deep)
1
retrospective(adjective, reasonable, keen, deep)
1
sober(adjective, reasonable, keen, deep)
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APASmart Define. (2015). studious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/studious/thesaurus/synonyms
ChicagoSmart Define. 2015. "studious thesaurus" https://smartdefine.org/studious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, studious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/studious/thesaurus/synonyms>.
MLASmart Define. "studious thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/studious/thesaurus/synonyms>