135 entries under knowledgeable topic. ×

3
psychological(adjective, rational, intelligent, thoughtful, intellect)
3
sound(adjective, alert, perceptive, cultured)
3
well-read(adjective, knowledge, experience, skill, familiar)
3
worldly(adjective, cool, significant, familiar, intelligent)
2
cultivated(adjective, familiar, intelligent, wise)
2
cultured(adjective, familiar, intelligent, wise)
2
cunning(adjective, good, smooth, keen, sharp)
2
educated(adjective, familiar, informed, intellectual)
2
expert(adjective, cool, smart, bright, significant)
2
good(adjective, excellent, keen, sharp, smart)
2
lettered(adjective, smart, familiar, intelligent, brilliant)
2
logical(adjective, reasonable, keen, sensible, deep)
2
omniscient(smart, familiar, intelligent, brilliant)
2
on the ball(expression, adjective, idiom, smooth, keen)
2
slick(adjective, cool, smooth, keen, sharp)
2
studious(adjective, reasonable, rational, intelligent, thoughtful)
2
versed(adjective, smooth, smart, clean, familiar)
2
veteran(adjective, smart, familiar, practical)
1
abstruse(cultured, educated, erudite, enlightened)
1
cagey(adjective, good, smooth, keen, sharp)
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APASmart Define. (2016). brainy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/brainy/thesaurus/synonyms
ChicagoSmart Define. 2016. "brainy thesaurus" https://smartdefine.org/brainy/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, brainy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/brainy/thesaurus/synonyms>.
MLASmart Define. "brainy thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/brainy/thesaurus/synonyms>