160 entries under rational topic. ×

5
healthy(adjective, sound, big, significant)
5
stable(adjective, sound, reasonable, moderate, firm)
5
tenable(adjective, sound, intelligent, sober)
4
au courant(expression, adjective, understanding, reasonable, keen)
4
commonsense(adjective, hard, sound, reasonable, true)
4
compos mentis(expression, adjective, healthy, stable)
4
intellectual(adjective, good, sound, reasonable, smart)
4
of sound mind(expression, adjective, idiom, healthy)
4
reasoned(adjective, sound, reasonable, intelligent)
4
unsentimental(adjective, hard, sound, tough, reasonable)
3
believable(adjective, open, sound, honest, solid)
3
calm(adjective, sound, reasonable, moderate, firm)
3
ratiocinative(adjective, clear, sound, reasonable, fair)
3
reasoning(adjective, sound, reasonable, intelligent)
3
serious(adjective, calm, relaxed, pure)
3
witting(adjective, understanding, cool, reasonable, keen)
2
collected(adjective, calm, sound, reasonable, moderate)
2
earthy(hard, sound, reasonable, straightforward)
2
fit(adjective, moderate, honest, proper)
2
mundane(adjective, reasonable, straightforward, practical)
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APASmart Define. (2016). sensible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sensible/thesaurus/synonyms
ChicagoSmart Define. 2016. "sensible thesaurus" https://smartdefine.org/sensible/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sensible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sensible/thesaurus/synonyms>.
MLASmart Define. "sensible thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/sensible/thesaurus/synonyms>