3
powerful(sound, reasonable, solid, realistic, forceful)
3
pragmatical(adjective, hard, sound, reasonable, sensible)
3
presumptive(adjective, adverb, reasonable, realistic, authentic)
3
quick-witted(adjective, smart, bright, sensible, intelligent)
3
right-minded(adjective, reasonable, sensible, healthy, stable)
3
serene(adjective, calm, quiet, reasonable, sensible)
3
systematic(sound, logical, coherent, applied, hands-on)
3
theoretical(adjective, moral, logical, metaphysical)
3
tranquil(adjective, reasonable, sensible, restrained, modest)
3
unexcited(adjective, calm, quiet, reasonable, sensible)
3
unruffled(adjective, calm, quiet, reasonable, sensible)
3
well-presented
2
adequate(adjective, reasonable, smart, sensible, experience)
2
advisable(adjective, good, sound, reasonable, sensible)
2
alert(adjective, understanding, keen, smart, bright)
2
arguable(adjective, sound, reasonable, sensible, intelligent)
2
brilliant(adjective, smart, bright, alert, intelligent)
2
canny(adjective, reasonable, smart, bright, intelligent)
2
careful(adjective, reasonable, sensible, restrained, modest)
2
civilized(adjective, tolerant, progressive)
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APASmart Define. (2016). rational thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rational/thesaurus/synonyms
ChicagoSmart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, rational thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>.
MLASmart Define. "rational thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms>