75 entries under keen topic. ×

7
aware(adjective, understanding, cool, sharp)
3
perceptive(adjective, understanding, cool, sharp)
3
sensitive(adjective, understanding, sharp, smart)
2
alert(adjective, understanding, sharp, smart)
2
awake(adjective, understanding, cool, sharp)
2
cognizant(adjective, understanding, fine, sensible)
2
conscious(adjective, understanding, cool, sharp)
2
knowing(adjective, understanding, cool, sharp)
2
knowledgeable(adjective, understanding, cool, sharp)
2
observant(adjective, understanding, cool, sharp)
2
receptive(adjective, understanding, friendly, fine)
2
responsive(adjective, understanding, sharp, friendly)
2
savvy(adjective, understanding, cool, smooth)
2
sensible(adjective, understanding, smooth, fine)
2
sentient(adjective, understanding, fine, sensible)
2
sharp(adjective, understanding, smooth, smart)
2
wise to(expression, adjective, understanding, cool)
1
acute(adjective, understanding, sharp, fine)
1
astute(adjective, understanding, sharp, smart)
1
brainy(adjective, understanding, smooth, sharp)
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APASmart Define. (2015). tuned in thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/tuned_in/thesaurus/synonyms
ChicagoSmart Define. 2015. "tuned in thesaurus" https://smartdefine.org/tuned_in/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, tuned in thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/tuned_in/thesaurus/synonyms>.
MLASmart Define. "tuned in thesaurus" 21 December 2015. Web. 29 September 2026. <https://smartdefine.org/tuned_in/thesaurus/synonyms>