113 entries under reasonable topic. ×

3
perceptive(adjective, clear, sound, sensible)
3
perspicacious(sound, sensible, reasoning, intellectual)
3
prudent(sound, sensible, rational, healthy)
3
wise(clear, sound, sensible, healthy)
2
cogent(adjective, clear, sound, sensible)
2
cool(adjective, calm, sound, sensible)
2
discerning(clear, sound, sensible, healthy)
2
healthy(adjective, sound, sensible, rational)
2
in good health(expression, adjective, idiom, rational)
2
intelligent(adjective, clear, sound, sensible)
2
judicious(clear, sound, sensible, healthy)
2
levelheaded(adjective, calm, quiet, sound)
2
reasoning(sound, sensible, intellectual, mental)
2
restrained(adjective, calm, quiet, sensible)
2
stable(sound, sensible, rational, normal)
2
telling(adjective, clear, sound, sensible)
2
thinking(sound, sensible, reasoning, intellectual)
2
valid(clear, sound, sensible, rational)
1
abnegating(adjective, calm, quiet, sensible)
1
abstaining(adjective, calm, quiet, 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>