92 entries under rational topic. ×

2
reasoned(adjective, sound, reasonable, sensible)
2
thoughtful(adjective, sound, reasonable, sensible)
2
well-advised(adjective, sound, reasonable, sensible)
1
advisable(adjective, sound, reasonable, fit, sensible)
1
arguable(adjective, sound, sensible, intelligent)
1
believable(adjective, sound, sensible, intelligent)
1
cerebral(adjective, sound, reasonable, sensible)
1
clear-cut(adjective, sound, sensible, intelligent)
1
cognitive(adjective, sound, reasonable, sensible)
1
cognizant(reasonable, sensible, stable, sober)
1
conscious(adjective, sound, reasonable, sensible)
1
consequent(adjective, sound, reasonable, sensible)
1
consistent(adjective, sound, sensible, intelligent)
1
equitable(adjective, sound, moderate, honest, sensible)
1
even-tempered(adjective, calm, sound, reasonable, sensible)
1
in good health(expression, adjective, idiom, great, sound)
1
in right mind(expression, adjective, idiom, reasonable, sensible)
1
perceiving(adjective, sound, sensible, intelligent)
1
reflective(adjective, sound, reasonable, honest, sensible)
1
tenable(adjective, sound, sensible, intelligent)
11 years ago|20k views|share |citing 
APASmart Define. (2015). sane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sane/thesaurus/synonyms
ChicagoSmart Define. 2015. "sane thesaurus" https://smartdefine.org/sane/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sane/thesaurus/synonyms>.
MLASmart Define. "sane thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/sane/thesaurus/synonyms>