170 entries under rational topic. ×

18
discreet(adjective, calm, understanding, reasonable, keen)
16
canny(adjective, cool, smooth, reasonable, keen)
16
logical(adjective, good, clear, sound, reasonable)
15
sane(adjective, calm, sound, reasonable, reason)
15
sapient(adjective, sound, reasonable, sharp, reason)
13
keen(adjective, understanding, smooth, reasonable, sharp)
12
enlightened(adjective, sound, reasonable, sharp, smart)
12
percipient(adjective, understanding, cool, sound, keen)
11
alert(verb, adjective, understanding, keen, sharp)
11
brilliant(adjective, cool, sharp, smart, bright)
11
quick-witted(adjective, cool, keen, sharp, smart)
11
thoughtful(adjective, good, sound, reasonable, sharp)
11
well-advised(adjective, good, sound, reasonable, sensible)
10
acute(adjective, understanding, smooth, keen, sharp)
10
advisable(adjective, good, sound, reasonable, sensible)
10
brainy(adjective, understanding, cool, smooth, reasonable)
10
bright(adjective, cool, keen, sharp, smart)
10
cognizant(adjective, understanding, cool, reasonable, knowledge)
10
commonsensical(adjective, calm, good, clear, sound)
10
discriminating(adjective, clear, sound, reasonable, keen)
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APASmart Define. (2016). wise thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/wise/thesaurus/synonyms
ChicagoSmart Define. 2016. "wise thesaurus" https://smartdefine.org/wise/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, wise thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/wise/thesaurus/synonyms>.
MLASmart Define. "wise thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/wise/thesaurus/synonyms>