21 entries under observant topic. ×

4
on the job(expression, adjective, idiom, alert, attentive)
3
alert(restless, disturbed, aware, attentive, wary)
2
cautious(adjective, alert, attentive, watchful)
2
circumspect(adjective, alert, attentive, watchful)
2
keen(alert, attentive, watchful)
2
ready(alert, attentive)
2
wide-awake(alert, careful, restless, disturbed, attentive)
1
careful(adjective, alert, restless, disturbed, attentive)
1
chary(adjective, alert, attentive)
1
guarded(adjective, alert, attentive, watchful)
1
on the watch(expression, idiom, alert, attentive)
0
all ears(expression, alert, attentive)
0
glued(alert, attentive)
0
hooked(alert, attentive)
0
not missing a trick(expression, idiom, alert, attentive)
0
open-eyed(alert, attentive, watchful)
0
prepared(alert, aware, attentive, wary)
0
see after(expression, alert, attentive)
0
see to(expression, alert, attentive)
0
suspicious(alert, attentive)
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APASmart Define. (2015). on the alert thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/on_the_alert/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the alert thesaurus" https://smartdefine.org/on_the_alert/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, on the alert thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_alert/thesaurus/synonyms>.
MLASmart Define. "on the alert thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/on_the_alert/thesaurus/synonyms>