131 entries under rational topic. ×

1
arguable(adjective, sound, sensible, intelligent)
1
aware(reasonable, sensible, alert, stable)
1
believable(adjective, sound, sensible, intelligent)
1
canny(adjective, close, mean, reasonable, sensible)
1
cerebral(adjective, sound, sensible, intelligent)
1
clear-cut(adjective, sound, sensible, intelligent)
1
cognitive(adjective, sound, sensible, intelligent)
1
cognizant(reasonable, sensible, stable, sober)
1
cold(adjective, calm, tough, sensible, dark)
1
cold-blooded(adjective, tough, straightforward, sober)
1
conscious(adjective, sound, reasonable, sensible)
1
consequent(adjective, sound, reasonable, sensible)
1
consistent(adjective, sound, sensible, intelligent)
1
constrained(adjective, calm, sensible, dark, restrained)
1
credible(adjective, sound, sensible, intelligent)
1
deadpan(adjective, tough, straightforward, sober)
1
drab(adjective, calm, simple, sensible, plain)
1
dry(adjective, simple, tough, flat, clean)
1
dull(adjective, simple, tough, plain, ordinary)
1
emotionless(adjective, tough, straightforward, sober)
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APASmart Define. (2016). practical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/practical/thesaurus/synonyms
ChicagoSmart Define. 2016. "practical thesaurus" https://smartdefine.org/practical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, practical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/practical/thesaurus/synonyms>.
MLASmart Define. "practical thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/practical/thesaurus/synonyms>