132 entries under keen topic. ×

12
penetrating(adjective, understanding, reasonable, sharp)
11
knowledgeable(adjective, understanding, cool, sound)
11
quick-witted(adjective, cool, sharp, smart)
11
sensible(adjective, clear, understanding, cool, sound)
10
bright(adjective, cool, sharp, smart)
10
canny(adjective, cool, smooth, reasonable)
10
knowing(verb, adjective, understanding, sound, smooth)
10
understanding(noun, verb, adjective, sound)
8
alert(adjective, understanding, sharp, smart)
8
deep(adjective, sharp, smart, bright)
8
rational(adjective, clear, understanding, sound, reasonable)
7
farsighted(adjective, smooth, reasonable, sharp)
7
ingenious(adjective, smooth, sharp, smart)
7
perceiving(noun, verb, adjective, understanding)
6
aware(adjective, understanding, cool, sound, reasonable)
6
brainy(adjective, understanding, cool, smooth)
6
incisive(adjective, understanding, sharp, smart)
6
observant(adjective, understanding, cool, reasonable)
5
observing(verb, adjective, understanding, sensible)
5
savvy(adjective, understanding, smooth, sharp)
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APASmart Define. (2015). discerning thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/discerning/thesaurus/synonyms
ChicagoSmart Define. 2015. "discerning thesaurus" https://smartdefine.org/discerning/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, discerning thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/discerning/thesaurus/synonyms>.
MLASmart Define. "discerning thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/discerning/thesaurus/synonyms>