75 entries under rational topic. ×

7
logical(adjective, sound, reasonable, sensible)
6
canny(adjective, cool, reasonable, sensible, significant)
6
discreet(adjective, understanding, reasonable, keen, sharp)
6
quick-witted(adjective, cool, smart, bright, sensible)
5
aware(adjective, understanding, cool, sound, reasonable)
5
brainy(adjective, understanding, cool, keen, sharp)
5
brilliant(adjective, cool, sharp, smart, bright)
4
bright(adjective, cool, sharp, smart, significant)
4
discriminating(adjective, smooth, reasonable, sharp, sensible)
4
whiz(noun, adjective, smart, bright, authority)
3
far-sighted(adjective, smooth, reasonable, sensible)
3
levelheaded(adjective, sound, reason, sensible)
3
quick(adjective, understanding, cool, keen, sharp)
2
attentive(adjective, understanding, reasonable, careful)
2
balanced(adjective, sound, reason, sensible)
2
conversant(adjective, understanding, cool, reasonable, significant)
2
creative(adjective, fantastic, original, resourceful)
2
down-to-earth(adjective, reasonable, sober, wise)
2
fit(sensible, healthy, stable, sober)
2
normal(sensible, healthy, stable, sober)
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APASmart Define. (2015). sage thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sage/thesaurus/synonyms
ChicagoSmart Define. 2015. "sage thesaurus" https://smartdefine.org/sage/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sage thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sage/thesaurus/synonyms>.
MLASmart Define. "sage thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/sage/thesaurus/synonyms>