506 entries under adjective topic. ×

3
numerical
3
philosophic(sound, reasonable, keen, sensible)
3
pragmatical(hard, sound, reasonable, sensible)
3
presumptive(adverb, reasonable, realistic, authentic)
3
quick-witted(smart, bright, sensible, intelligent)
3
right-minded(reasonable, sensible, healthy, stable)
3
serene(calm, quiet, reasonable, sensible)
3
theoretical(moral, logical, metaphysical)
3
tranquil(reasonable, sensible, restrained, modest)
3
unexcited(calm, quiet, reasonable, sensible)
3
unruffled(calm, quiet, reasonable, sensible)
2
adequate(reasonable, smart, sensible, experience)
2
advisable(good, sound, reasonable, sensible)
2
alert(understanding, keen, smart, bright)
2
arguable(sound, reasonable, sensible, intelligent)
2
brilliant(smart, bright, alert, intelligent)
2
canny(reasonable, smart, bright, intelligent)
2
careful(reasonable, sensible, restrained, modest)
2
civilized(tolerant, progressive)
2
cogitative(reasonable, keen, sensible, deep)
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APASmart Define. (2016). rational thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rational/thesaurus/synonyms
ChicagoSmart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, rational thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>.
MLASmart Define. "rational thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms>