1
deft(adjective, bright, expert, skilled, capable)
1
delightful(cool, pleasant, fair, big, agreeable)
1
detecting(alert, intelligent, attentive, watchful, sharp-eyed)
1
dexterous(adjective, smooth, smart, bright, active)
1
diligent
1
discerning(adjective, smooth, keen, sharp, smart)
1
discovering(alert, intelligent, attentive, watchful, sharp-eyed)
1
discriminating(sharp, smart, alert, intelligent, attentive)
1
dynamite(decent, knowledgeable, adequate, skilled, qualified)
1
eager(alert, intelligent, precise, responsive, attentive)
1
eagle-eyed(alert, intelligent, attentive, watchful, sharp-eyed)
1
earnest
1
effective(adjective, bright, productive, persuasive, sharp-witted)
1
effectual(bright, sharp-witted, quick-thinking)
1
endowed(decent, knowledgeable, adequate, qualified, capable)
1
enough(decent, knowledgeable, adequate, qualified, capable)
1
equal(decent, knowledgeable, adequate, qualified, capable)
1
equitable(right, perfect, exact, proper, true)
1
fair(pleasant, agreeable, suitable, adequate, satisfactory)
1
fast on the draw(expression, idiom, sharp, bright, lively)
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APASmart Define. (2015). on the ball thesaurus. Retrieved September 29, 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 29, 2026).
HarvardSmart Define 2015, on the ball thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/on_the_ball/thesaurus/synonyms>.
MLASmart Define. "on the ball thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/on_the_ball/thesaurus/synonyms>