60 entries under astute topic. ×

12
alert(adjective, adverb, keen, sharp, smart)
9
sharp(adjective, adverb, smooth, keen, smart)
8
observant(adjective, keen, sharp, bright, lively)
7
quick(adjective, smooth, sharp, smart, bright)
7
shrewd(adjective, good, smooth, keen, sharp)
6
perceptive(adjective, smooth, keen, sharp, smart)
6
ready(adjective, adverb, smooth, sharp, smart)
6
smart(adjective, smooth, keen, sharp, bright)
5
clever(adjective, good, smooth, keen, sharp)
5
intelligent(adjective, good, smooth, keen, sharp)
5
keen(adjective, smooth, sharp, smart, bright)
4
ingenious(adjective, smooth, keen, sharp, smart)
4
wise(adjective, smooth, keen, sharp, smart)
3
adroit(adjective, smooth, sharp, smart, bright)
3
savvy(adjective, smooth, keen, sharp, smart)
2
acute(adjective, smooth, keen, sharp, smart)
2
apt(adjective, good, smooth, sharp, smart)
2
brainy(adjective, smooth, keen, sharp, smart)
2
cagey(adjective, smooth, keen, sharp, smart)
2
knowing(adjective, smooth, keen, sharp, smart)
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APASmart Define. (2015). on the ball thesaurus. Retrieved September 30, 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 30, 2026).
HarvardSmart Define 2015, on the ball thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_ball/thesaurus/synonyms>.
MLASmart Define. "on the ball thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/on_the_ball/thesaurus/synonyms>