103 entries under rational topic. ×

7
reasonable(adjective, good, kind, sound, gentle)
6
absorbed(adjective, reasonable, keen, deep)
6
brainy(adjective, reasonable, keen, heavy, deep)
6
deep(adjective, good, keen, sensible, fair)
6
logical(adjective, good, sound, reasonable, sensible)
6
perceptive(adjective, sound, reasonable, sharp, smart)
6
sensible(adjective, good, sound, reasonable, sharp)
6
subjective(adjective, characteristic, quality, reasonable, keen)
6
tolerant(adjective, good, understanding, kind, sound)
5
ruminating(adjective, intelligent, thinking, meditative)
5
sound(adjective, good, reasonable, sharp, smart)
4
analytical(adjective, sound, reasonable, keen, sensible)
4
calm(adjective, sound, reasonable, sensible)
4
cerebral(adjective, sound, reasonable, sensible)
4
cool(adjective, good, understanding, kind, sound)
4
highbrow(adjective, informal, intelligent, knowledgeable)
4
intelligent(adjective, sound, reasonable, sharp, smart)
4
keen(adjective, reasonable, sensible, deep)
4
reasoning(adjective, sound, reasonable, sensible, heavy)
4
well-advised(adjective, good, sound, reasonable, sensible)
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APASmart Define. (2016). thoughtful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/thoughtful/thesaurus/synonyms
ChicagoSmart Define. 2016. "thoughtful thesaurus" https://smartdefine.org/thoughtful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, thoughtful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/thoughtful/thesaurus/synonyms>.
MLASmart Define. "thoughtful thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/thoughtful/thesaurus/synonyms>