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29 entries under vigilant topic. ×

2
all ears(expression, adjective, sharp, bright, lively)
2
attentive(adjective, keen, sharp, bright, lively)
2
careful(adjective, keen, sharp, bright, lively)
2
circumspect(adjective, keen, sharp, bright, lively)
2
heedful(adjective, sharp, bright, lively, alert)
2
observant(adjective, keen, sharp, bright, lively)
2
on guard(expression, keen, sharp, bright, lively)
2
on the ball(expression, idiom, keen, sharp, bright)
2
on the job(expression, idiom, keen, sharp, bright)
2
wary(adjective, keen, sharp, bright, lively)
2
wide-awake(adjective, keen, sharp, bright, lively)
1
alert(adjective, keen, lively, careful, caring)
1
cautious(adjective, keen, alert, careful, considerate)
1
chary(adjective, alert, careful, considerate, cautious)
1
glued(adjective, alert, careful, caring, thoughtful)
1
guarded(adjective, keen, anxious, alert, careful)
1
hooked(adjective, alert, careful, caring, thoughtful)
1
keen(adjective, anxious, alert, careful, cautious)
1
not missing a trick(expression, adjective, idiom, alert, careful)
1
on the watch(expression, adjective, idiom, alert, careful)
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APASmart Define. (2011). on the qui vive thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/on_the_qui_vive/thesaurus/synonyms
ChicagoSmart Define. 2011. "on the qui vive thesaurus" https://smartdefine.org/on_the_qui_vive/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2011, on the qui vive thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/on_the_qui_vive/thesaurus/synonyms>.
MLASmart Define. "on the qui vive thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/on_the_qui_vive/thesaurus/synonyms>