56 entries under rational topic. ×

8
reasonable(adjective, sound, sensible, practical)
5
believable(adjective, sound, reasonable, sensible)
5
credible(adjective, sound, reasonable, sensible)
5
plausible(adjective, sound, reasonable, sensible)
5
tenable(adjective, sound, reasonable, sensible)
3
viable(adjective, sound, reasonable, conceivable)
2
defendable(adjective, sound, reasonable, conceivable)
2
defensible(adjective, sound, reasonable, justified)
2
maintainable(adjective, sound, reasonable, justified)
1
advisable(adjective, sound, sensible, intelligent)
1
all there(expression, adjective, sound, sensible)
1
cerebral(adjective, sound, sensible, intelligent)
1
clear-cut(adjective, sound, sensible, intelligent)
1
cognitive(adjective, sound, sensible, intelligent)
1
commonsensical(adjective, sound, sensible, intelligent)
1
conscious(adjective, sound, sensible, intelligent)
1
consequent(adjective, sound, sensible, intelligent)
1
consistent(adjective, sound, sensible, intelligent)
1
cool(adjective, sound, sensible, intelligent)
1
judicious(adjective, sound, sensible, intelligent)
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APASmart Define. (2015). arguable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/arguable/thesaurus/synonyms
ChicagoSmart Define. 2015. "arguable thesaurus" https://smartdefine.org/arguable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, arguable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/arguable/thesaurus/synonyms>.
MLASmart Define. "arguable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/arguable/thesaurus/synonyms>