Synonyms|699Antonyms|128|Broader|9Narrower|12Related|907

68 entries under keen topic. ×

5
unsleeping(adjective, alert, careful, disturbed)
4
discerning(adjective, understanding, cool, reasonable)
4
on the job(expression, adjective, idiom, sharp)
3
knowing(adjective, understanding, smart, sensible)
3
sensible(adjective, understanding, cool, reasonable)
2
agog(alert, careful, attentive)
2
alive to(verb, expression, adjective, phrasal verb, understanding)
2
cognizant(adjective, understanding, cool, sensible)
2
conversant(adjective, understanding, cool, sensible)
2
percipient(adjective, understanding, cool, sensible)
2
sentient(adjective, understanding, cool, sensible)
2
understanding(adjective, sensible, certain, alert)
2
with it(expression, understanding, sharp, smart)
1
able to recognize(expression, adjective, idiom, understanding)
1
acquainted(adjective, understanding, sensible, certain)
1
acute(smart, careful, shrewd, clever)
1
aesthetic(adjective, understanding, sensible, certain)
1
apperceptive(adjective, understanding, sensible, certain)
1
apprised(adjective, understanding, sensible, certain)
1
assured(adjective, understanding, sensible, certain)
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APASmart Define. (2016). watchful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/watchful/thesaurus/synonyms
ChicagoSmart Define. 2016. "watchful thesaurus" https://smartdefine.org/watchful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, watchful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/watchful/thesaurus/synonyms>.
MLASmart Define. "watchful thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/watchful/thesaurus/synonyms>