120 entries under keen topic. ×

8
smart(adjective, cool, sound, smooth)
7
impressionable(adjective, understanding, open, easy)
7
awake(adjective, understanding, open, cool, knowledge)
7
conversant(adjective, understanding, cool, reasonable)
7
sharp(adjective, understanding, open, cool, sound)
7
susceptive(adjective, understanding, open, easy)
7
understanding(adjective, sound, sharp, fine)
6
bright(adjective, good, cool, sharp)
6
canny(adjective, cool, smooth, reasonable)
6
impressible(adjective, understanding, easy, fine)
6
quick-witted(adjective, good, cool, sharp)
5
alert(adjective, understanding, open, smart)
5
brainy(adjective, understanding, cool, smooth)
5
feeling(noun, adjective, understanding, fine)
5
mindful(adjective, understanding, certain, alert)
5
savvy(adjective, understanding, smooth, sharp)
4
acute(adjective, understanding, smooth, sharp)
4
au courant(expression, adjective, understanding, reasonable)
4
in the know(expression, adjective, idiom, smooth)
4
on to(expression, adjective, idiom, understanding, knowledge)
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APASmart Define. (2016). sensible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sensible/thesaurus/synonyms
ChicagoSmart Define. 2016. "sensible thesaurus" https://smartdefine.org/sensible/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, sensible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sensible/thesaurus/synonyms>.
MLASmart Define. "sensible thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/sensible/thesaurus/synonyms>