99 entries under intellectual topic. ×

11
sage(adjective, understanding, sound, reasonable, keen)
10
plausible(adjective, clear, sound, reasonable, sensible)
10
ratiocinative(adjective, clear, sound, reasonable, reason)
10
calm(adjective, sound, reasonable, sensible, restrained)
10
collected(adjective, calm, quiet, sound, reasonable)
10
together(adjective, calm, good, sound, reasonable)
9
cerebral(adjective, sound, reasonable, sensible, intelligent)
9
perspicacious(adjective, understanding, sound, reasonable, keen)
9
thoughtful(adjective, good, sound, reasonable, sensible)
8
all there(expression, adjective, idiom, calm, good)
8
analytical(adjective, clear, sound, reasonable, reason)
8
brainy(adjective, understanding, reasonable, keen, sharp)
8
consequent(adjective, good, clear, sound, reasonable)
8
credible(adjective, sound, reasonable, sensible, solid)
8
discerning(adjective, clear, understanding, sound, reasonable)
8
justifiable(adjective, clear, sound, reasonable, honest)
8
levelheaded(adjective, calm, good, quiet, hard)
8
mental(adjective, mind, intelligent, thoughtful, intellect)
8
stable(adjective, sound, reasonable, sensible, normal)
7
believable(adjective, sound, reasonable, honest, sensible)
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APASmart Define. (2016). rational thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rational/thesaurus/synonyms
ChicagoSmart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, rational thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>.
MLASmart Define. "rational thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms>