137 entries under reasonable topic. ×

3
conscious(adjective, understanding, cool, keen)
3
considerate(adjective, sensible, delicate, sympathetic)
3
sober(adjective, sound, sensible, rational)
3
sophisticated(adjective, cool, sensible, delicate)
3
subtle(adjective, clear, sound, sharp)
3
vigilant(adjective, understanding, cool, keen)
2
all there(expression, adjective, sound, keen)
2
cagey(adjective, smooth, keen, sharp)
2
cogent(clear, sound, sensible, rational)
2
conversant(adjective, understanding, cool, keen)
2
intellectual(adjective, sound, smart, bright)
2
lucid(clear, sound, sensible, healthy)
2
normal(sound, sensible, rational, healthy)
2
reflective(adjective, sound, sharp, smart)
2
sentient(adjective, understanding, cool, keen)
2
well-advised(adjective, sound, sensible, wise)
2
witting(adjective, understanding, cool, keen)
1
absorbed(adjective, keen, deep, rational)
1
analytic(clear, sound, sensible, rational)
1
au courant(expression, adjective, understanding, keen)
11 years ago|19k views|share |citing 
APASmart Define. (2015). discerning thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/discerning/thesaurus/synonyms
ChicagoSmart Define. 2015. "discerning thesaurus" https://smartdefine.org/discerning/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, discerning thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/discerning/thesaurus/synonyms>.
MLASmart Define. "discerning thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/discerning/thesaurus/synonyms>