99 entries under rational topic. ×

2
cogent(adjective, clear, sound, reasonable, sensible)
2
cool(adjective, calm, sound, reasonable, sensible)
2
down-to-earth(adjective, calm, sensible, dark, restrained)
2
healthy(adjective, sound, reasonable, sensible)
2
in good health(expression, adjective, idiom, reasonable)
2
intelligent(adjective, clear, sound, reasonable, sensible)
2
levelheaded(adjective, calm, quiet, sound, reasonable)
2
practical(adjective, calm, sensible, dark, restrained)
2
stable(sound, reasonable, sensible, normal)
2
valid(clear, sound, reasonable, sensible)
2
well-adjusted(adjective, healthy, stable, normal)
1
abnegating(adjective, calm, quiet, reasonable, sensible)
1
abstaining(adjective, calm, quiet, reasonable, sensible)
1
analytic(clear, sound, reasonable, sensible)
1
analytical(clear, sound, reasonable, sensible)
1
calm(adjective, sound, reasonable, sensible, restrained)
1
cold(adjective, calm, sensible, dark, restrained)
1
collected(adjective, calm, quiet, sound, reasonable)
1
compelling(clear, sound, reasonable, sensible)
1
composed(adjective, calm, quiet, reasonable, sensible)
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APASmart Define. (2016). lucid thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/lucid/thesaurus/synonyms
ChicagoSmart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, lucid thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/lucid/thesaurus/synonyms>.
MLASmart Define. "lucid thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/lucid/thesaurus/synonyms>