99 entries under rational topic. ×

1
kosher(adjective, clear, sound, reasonable, bright)
1
legit(clear, sound, reasonable, sensible)
1
necessary(clear, sound, reasonable, sensible)
1
no-nonsense(adjective, calm, quiet, reasonable, sensible)
1
peaceful dull(expression, calm, quiet, reasonable, dark)
1
pertinent(clear, sound, reasonable, sensible)
1
plausible(clear, sound, reasonable, sensible)
1
relevant(clear, sound, reasonable, sensible)
1
right-minded(adjective, sound, sensible, healthy)
1
sagacious(sound, reasonable, sensible, healthy)
1
sage(sensible, healthy, stable, sober)
1
sedate(adjective, calm, quiet, reasonable, sensible)
1
severe(adjective, calm, quiet, reasonable, sensible)
1
solemn(adjective, calm, quiet, reasonable, sensible)
1
somber(adjective, calm, quiet, reasonable, sensible)
1
staid(adjective, calm, quiet, reasonable, sensible)
1
steady(adjective, calm, quiet, sound, reasonable)
1
subtle(clear, sound, reasonable, sensible)
1
unexcited(adjective, calm, quiet, reasonable, sensible)
1
unimpassioned(adjective, calm, quiet, reasonable, sensible)
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APASmart Define. (2016). lucid thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lucid/thesaurus/synonyms
ChicagoSmart Define. 2016. "lucid thesaurus" https://smartdefine.org/lucid/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lucid thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lucid/thesaurus/synonyms>.
MLASmart Define. "lucid thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/lucid/thesaurus/synonyms>