110 entries under reasonable topic. ×

13
rational(adjective, clear, sound, reason)
11
analytic(adjective, clear, sound, reason)
9
logical(adjective, adverb, clear, sound)
7
ratiocinative(adjective, clear, sound, reason)
6
deductive(adjective, sound, sensible, reasoning)
6
judicious(adjective, sensible, proper, penetrating)
6
perceptive(adjective, clear, sound, sensible)
5
discerning(adjective, clear, sound, sharp)
5
ruminative(adjective, rational, thoughtful, sober)
4
subtle(adjective, clear, sound, sensible)
3
intellectual(adjective, sound, sensible, rational)
3
keen(adjective, sensitive, deep, rational)
3
reasoning(adjective, sound, keen, sensible)
3
thoughtful(adjective, sound, keen, sensible)
2
cogent(adjective, clear, sound, sensible)
2
empirical(adjective, adverb, rational, logical)
2
inferential(clear, sound, sensible, rational)
2
sound(adjective, sensible, proper, logical)
2
studious(adjective, sober, interested, curious)
2
synthetic(sound, sensible, reasoning, intellectual)
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APASmart Define. (2015). analytical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/analytical/thesaurus/synonyms
ChicagoSmart Define. 2015. "analytical thesaurus" https://smartdefine.org/analytical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, analytical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/analytical/thesaurus/synonyms>.
MLASmart Define. "analytical thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/analytical/thesaurus/synonyms>