185 entries under rational topic. ×

1
perceiving(adjective, sensible, intelligent, sober)
1
pertinent(clear, reasonable, sensible, forceful)
1
reflective(adjective, reasonable, sharp, smart, honest)
1
relevant(clear, reasonable, sensible, forceful)
1
sedate(adjective, calm, quiet, reasonable, firm)
1
self-possessed(adjective, calm, firm, sensible, solid)
1
severe(adjective, calm, quiet, hard, reasonable)
1
solemn(adjective, calm, quiet, correct, reasonable)
1
somber(adjective, calm, quiet, reasonable, sensible)
1
staid(adjective, calm, quiet, reasonable, firm)
1
subtle(clear, reasonable, sensible, logical)
1
systematic(adjective, reasonable, sensible, solid)
1
unbiased(adjective, sensible, intelligent, thoughtful)
1
unexcited(adjective, calm, quiet, reasonable, sensible)
1
unimpassioned(adjective, calm, quiet, reasonable, sensible)
1
unprejudiced(adjective, sensible, intelligent, thoughtful)
1
vindicable(reasonable, justified, defensible)
1
warrantable(reasonable, justified, defensible)
1
well-organized(clear, reasonable, sensible, stable)
1
well-reasoned(adjective, reasonable, sober, wise)
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APASmart Define. (2016). sound thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sound/thesaurus/synonyms
ChicagoSmart Define. 2016. "sound thesaurus" https://smartdefine.org/sound/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, sound thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sound/thesaurus/synonyms>.
MLASmart Define. "sound thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/sound/thesaurus/synonyms>