68 entries under sensitive topic. ×

4
brainy(adjective, understanding, cool, keen, sharp)
4
bright(adjective, cool, keen, sharp, smart)
4
discriminating(sharp, smart, intelligent, wise)
4
observant(adjective, understanding, cool, keen, sharp)
4
savvy(adjective, understanding, keen, sharp, smart)
3
ingenious(sharp, smart, shrewd, penetrating)
3
profound(keen, sharp, smart, deep)
3
prudent(adjective, sharp, smart, sensible)
3
rational(adjective, understanding, smooth, keen, sharp)
3
responsive(adjective, understanding, keen, shrewd)
3
thoughtful(adjective, sound, sharp, sensible)
2
awake(adjective, understanding, cool, keen, sharp)
2
brilliant(adjective, cool, sharp, smart, significant)
2
deep(adjective, sharp, smart, thoughtful)
2
gnostic(adjective, understanding, smooth, keen, sharp)
2
incisive(adjective, understanding, keen, sharp, smart)
2
penetrative(adjective, understanding, keen, shrewd)
2
sophic(adjective, understanding, cool, smooth, keen)
1
critical(sharp, meaningful, piercing, astute)
1
clear-sighted(adjective, sharp, intelligent, wise)
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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>