119 entries under keen topic. ×

3
sympathetic(adjective, good, understanding, kind)
3
unsleeping(adjective, alert, careful, cautious)
2
acquainted(adjective, understanding, sensible, certain)
2
agog(alert, careful, watchful)
2
au courant(expression, adjective, understanding, reasonable)
2
conversant(adjective, understanding, reasonable, sensible)
2
curious(adjective, sympathetic, excited, involved)
2
informed(adjective, understanding, reasonable, sensible)
2
knowing(adjective, understanding, reasonable, sensible)
2
occupied(adjective, set, sympathetic, active)
2
on the qui vive(expression, adjective, idiom, sharp)
2
on to(expression, adjective, understanding, sensible)
2
percipient(adjective, understanding, sensible, certain)
2
serious(adjective, reasonable, deep, thoughtful)
2
thinking(adjective, reasonable, deep, rational)
2
understanding(adjective, kind, friendly, sensible)
2
wise to(expression, understanding, sensible, certain)
2
with it(expression, adjective, understanding, sharp)
1
able to recognize(expression, adjective, idiom, understanding)
1
aesthetic(adjective, understanding, sensible, certain)
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APASmart Define. (2016). attentive thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/attentive/thesaurus/synonyms
ChicagoSmart Define. 2016. "attentive thesaurus" https://smartdefine.org/attentive/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, attentive thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/attentive/thesaurus/synonyms>.
MLASmart Define. "attentive thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/attentive/thesaurus/synonyms>