72 entries under knowledgeable topic. ×

1
conscientious(adjective, careful, caring, thoughtful)
1
conversant(familiar, careful, aware, informed)
1
crisp(decent, adequate, qualified, capable)
1
cunning(adjective, smooth, keen, sharp, smart)
1
discerning(adjective, smooth, keen, sharp, smart)
1
dynamite(decent, adequate, skilled, qualified)
1
endowed(decent, adequate, qualified, capable)
1
enough(decent, adequate, qualified, capable)
1
equal(decent, adequate, qualified, capable)
1
fireball(decent, adequate, skilled, qualified)
1
fit(decent, adequate, qualified, aware)
1
fool(decent, adequate, qualified, capable)
1
foxy(adjective, smooth, keen, sharp, smart)
1
handy(adjective, smooth, smart, bright, intelligent)
1
in the know(expression, adjective, idiom, smooth, keen)
1
know all the answers(expression, adjective, idiom, careful)
1
know ins and outs(expression, adjective, idiom, careful, decent)
1
observative(adjective, alert, careful, cautious)
1
on to(expression, careful, aware, attentive)
1
pertinent(decent, adequate, qualified, capable)
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APASmart Define. (2015). on the ball thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/on_the_ball/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the ball thesaurus" https://smartdefine.org/on_the_ball/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, on the ball thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/on_the_ball/thesaurus/synonyms>.
MLASmart Define. "on the ball thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/on_the_ball/thesaurus/synonyms>