137 entries under reasonable topic. ×

6
aware(adjective, understanding, cool, sound)
6
clear(sound, sensible, rational, logical)
6
observant(adjective, understanding, cool, keen)
6
sapient(adjective, sound, sharp, smart)
5
collected(sound, sensible, alert, rational)
5
enlightened(adjective, sound, sharp, rational)
5
logical(adjective, clear, sound, sensible)
5
perspicuous(adjective, clear, sound, sensible)
5
ruminative(adjective, rational, intelligent, thoughtful)
5
sane(adjective, sound, sensible, rational)
4
attentive(adjective, understanding, keen, sensible)
4
far-sighted(adjective, sound, sensible, rational)
4
informed(adjective, understanding, sound, keen)
4
sound(adjective, sensible, healthy, sober)
4
watchful(adjective, understanding, cool, keen)
3
analytical(adjective, clear, sound, sharp)
3
awake(adjective, understanding, cool, keen)
3
calculating(adjective, smooth, keen, sharp)
3
cognizant(adjective, understanding, cool, keen)
3
commonsensical(adjective, clear, sensible, healthy)
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APASmart Define. (2015). discerning thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/discerning/thesaurus/synonyms
ChicagoSmart Define. 2015. "discerning thesaurus" https://smartdefine.org/discerning/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, discerning thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/discerning/thesaurus/synonyms>.
MLASmart Define. "discerning thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/discerning/thesaurus/synonyms>