506 entries under adjective topic. ×

7
knowing(reasonable, smart, bright, proper)
7
noetic
7
philosophical(intelligent, thoughtful, moral, logical)
7
psychological(intelligent, thoughtful, intellect, knowledgeable)
7
right(sound, reasonable, honest, sensible)
7
understanding(moderate, smart, bright, intellectual)
6
astute(understanding, hard, sound, tough)
6
bright(smart, intelligent, thoughtful, brainy)
6
conceivable(reasonable, honest, fair, acceptable)
6
just(adverb, good, sound, reasonable)
6
moderate(sound, reasonable, sensible, fair)
6
perceptive(clear, reasonable, sensible, alert)
6
pragmatic(hard, sound, tough, reasonable)
6
reflective(sound, reasonable, honest, sensible)
6
tenable(sound, reasonable, honest, sensible)
6
well-founded(sound, reasonable, reason, logical)
5
analytic(clear, sound, reasonable, reason)
5
clearheaded(sensible, sober, articulate, sane)
5
common-sense
5
commonsense(hard, sound, reasonable, sensible)
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APASmart Define. (2016). rational thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rational/thesaurus/synonyms
ChicagoSmart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, rational thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>.
MLASmart Define. "rational thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms>