38 entries under rational topic. ×

10
obvious(adjective, clear, sound, simple, reasonable)
5
discerning(adjective, clear, sound, reasonable, sensible)
5
perceptive(adjective, clear, sound, reasonable, sensible)
3
logical(adjective, clear, sound, reasonable)
2
cogent(clear, sound, reasonable, sensible)
2
reasonable(adjective, sound, sensible, probable)
2
sensible(adjective, clear, sound, reasonable)
2
sound(adjective, clear, reasonable, sensible)
1
analytic(clear, sound, reasonable, sensible)
1
analytical(adjective, clear, sound, reasonable, sensible)
1
commonsensical(adjective, clear, sound, reasonable, sensible)
1
compelling(clear, sound, reasonable, sensible)
1
congruent(clear, sound, reasonable, sensible)
1
consequent(clear, sound, reasonable, sensible)
1
convincing(clear, sound, reasonable, sensible)
1
deducible(clear, sound, reasonable, sensible)
1
discriminating(adjective, clear, sound, reasonable, sensible)
1
extensional(clear, sound, reasonable, sensible)
1
fair(clear, sound, reasonable, sensible)
1
germane(clear, sound, reasonable, sensible)
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APASmart Define. (2016). perspicuous thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/perspicuous/thesaurus/synonyms
ChicagoSmart Define. 2016. "perspicuous thesaurus" https://smartdefine.org/perspicuous/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, perspicuous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/perspicuous/thesaurus/synonyms>.
MLASmart Define. "perspicuous thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/perspicuous/thesaurus/synonyms>