123 entries under watchful topic. ×

5
knowledgeable(adjective, understanding, keen, sharp, smart)
5
on the job(expression, adjective, idiom, keen, sharp)
5
prepared(adjective, care, excited, ready, anxious)
5
sensible(adjective, understanding, open, keen, smart)
5
sensitive(adjective, understanding, open, keen, sharp)
4
advertent(intelligent, attentive, sharp-eyed)
4
all ears(expression, adjective, sharp, bright, lively)
4
considering(adjective, intelligent, attentive, sharp-eyed)
4
eagle-eyed(adjective, intelligent, attentive, sharp-eyed)
4
hip(adjective, lively, familiar, wise, knowledgeable)
3
eager(adjective, strong, keen, intense, energetic)
3
unsleeping(adjective, keen, careful, restless, cautious)
3
with it(expression, adjective, understanding, keen, sharp)
2
agog(adjective, strong, keen, intense, enthusiastic)
2
apprehensive(adjective, deliberate, excited, ready, anxious)
2
au courant(expression, adjective, understanding, keen, sensible)
2
clear-sighted(intelligent, wise, attentive, insightful)
2
conversant(adjective, understanding, keen, sensible, certain)
2
cool(adjective, pleasant, deliberate, familiar, thoughtful)
2
discriminating(adjective, intelligent, cautious, attentive)
10 years ago|34k views|share |citing 
APASmart Define. (2016). alert thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/alert/thesaurus/synonyms
ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>