7
knowing(adjective, understanding, sound, keen, sharp)
6
alert(adjective, understanding, keen, sensitive, familiar)
6
judicious(adjective, understanding, cool, sound, keen)
6
percipient(adjective, understanding, cool, keen, sharp)
6
sensible(adjective, understanding, cool, sound, smooth)
6
smart(adjective, understanding, cool, sound, sharp)
5
canny(adjective, cool, smooth, keen, sharp)
5
conscious(adjective, understanding, cool, keen, sharp)
5
crafty(adjective, keen, sharp, smart, sensible)
5
intuitive(adjective, understanding, sound, keen, sharp)
5
quick(adjective, understanding, cool, keen, sharp)
5
quick-witted(adjective, cool, sharp, smart, significant)
5
sapient(adjective, sound, sharp, sensible, intelligent)
4
artful(adjective, sharp, smart, astute, intuitive)
4
brainy(adjective, understanding, cool, keen, sharp)
4
bright(adjective, cool, keen, sharp, smart)
4
discriminating(sharp, smart, sensitive, intelligent, wise)
4
foresighted(adjective, sound, sharp, sensible, intelligent)
4
observant(adjective, understanding, cool, keen, sharp)
4
savvy(adjective, understanding, keen, sharp, smart)
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APASmart Define. (2015). insightful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/insightful/thesaurus/synonyms
ChicagoSmart Define. 2015. "insightful thesaurus" https://smartdefine.org/insightful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, insightful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/insightful/thesaurus/synonyms>.
MLASmart Define. "insightful thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/insightful/thesaurus/synonyms>