97 entries under keen topic. ×

2
cunning(adjective, good, smooth, sharp)
2
good(adjective, excellent, sharp, smart)
2
logical(adjective, reasonable, sensible, deep)
2
on the ball(expression, adjective, idiom, smooth)
2
reasoning(adjective, reasonable, heavy, rational)
2
slick(adjective, cool, smooth, sharp)
2
smooth(adjective, sharp, smart, clean)
1
absorbed(adjective, reasonable, deep, rational)
1
analytical(adjective, reasonable, deep, rational)
1
cagey(adjective, good, smooth, sharp)
1
cogitative(adjective, reasonable, deep, rational)
1
conscious(adjective, understanding, cool, sharp)
1
contemplative(adjective, reasonable, deep, rational)
1
deliberative(adjective, reasonable, deep, rational)
1
discreet(understanding, alert, sensitive, perceptive)
1
ear to the ground(expression, adjective, idiom, understanding)
1
earnest(adjective, reasonable, sensible, deep)
1
engrossed(adjective, reasonable, deep, rational)
1
farsighted(adjective, smooth, reasonable, sharp)
1
foxy(adjective, smooth, sharp, smart)
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APASmart Define. (2016). brainy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/brainy/thesaurus/synonyms
ChicagoSmart Define. 2016. "brainy thesaurus" https://smartdefine.org/brainy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, brainy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/brainy/thesaurus/synonyms>.
MLASmart Define. "brainy thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/brainy/thesaurus/synonyms>