100 entries under logical topic. ×

10
ratiocinative(adjective, clear, sound, reasonable, reason)
10
calm(adjective, sound, reasonable, sensible, restrained)
10
collected(adjective, calm, quiet, sound, reasonable)
10
together(adjective, calm, good, sound, reasonable)
9
cerebral(adjective, sound, reasonable, sensible, intelligent)
9
perspicacious(adjective, understanding, sound, reasonable, keen)
9
thoughtful(adjective, good, sound, reasonable, sensible)
8
all there(expression, adjective, idiom, calm, good)
8
analytical(adjective, clear, sound, reasonable, reason)
8
consequent(adjective, good, clear, sound, reasonable)
8
discerning(adjective, clear, understanding, sound, reasonable)
8
justifiable(adjective, clear, sound, reasonable, honest)
8
levelheaded(adjective, calm, good, quiet, hard)
7
cogent(adjective, clear, sound, reasonable, sensible)
7
coherent(adjective, clear, sound, reasonable, sensible)
7
philosophical(adjective, intelligent, thoughtful, moral)
7
valid(sound, reasonable, sensible, proper)
6
reflective(adjective, sound, reasonable, honest, sensible)
6
well-founded(adjective, sound, reasonable, reason)
5
analytic(adjective, clear, sound, reasonable, reason)
10 years ago|29k views|share |citing 
APASmart Define. (2016). rational thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rational/thesaurus/synonyms
ChicagoSmart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, rational thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>.
MLASmart Define. "rational thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms>