2
apt(adjective, wise, learned, sage)
2
awake(adjective, understanding, cool, keen, sharp)
2
brilliant(adjective, cool, sharp, smart, significant)
2
calculating(keen, sharp, smart, sensible, intelligent)
2
clairvoyant(adjective, clairvoyant)
2
cognizant(adjective, understanding, cool, crack, significant)
2
contemplative(sound, sharp, sensible, intelligent, wise)
2
deep(adjective, sharp, smart, sensitive, thoughtful)
2
farsighted(adjective, sharp, smart, intelligent, wise)
2
gnostic(adjective, understanding, smooth, keen, sharp)
2
incisive(adjective, understanding, keen, sharp, smart)
2
informed(sound, sharp, sensible, familiar, deep)
2
intellectual(deep, thoughtful, reflective)
2
learned(sound, sharp, familiar, deep, intelligent)
2
mindful(perceptive, observant)
2
omniscient(smart, familiar, intelligent, brilliant, informed)
2
penetrative(adjective, understanding, keen, sensitive, shrewd)
2
reasonable(adjective, sensible, intelligent, sage)
2
scholarly(sound, sharp, smart, sensible, familiar)
2
sharp-witted(sharp, smart, wise, astute, sagacious)
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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>