Synonyms|648Antonyms|154|Broader|16Narrower|18Related|740

69 entries under vigilant topic. ×

4
on the watch(expression, adjective, idiom, adverb, attention)
4
ready(adjective, open, sharp, friendly, bright)
4
wide-awake(adjective, keen, sharp, bright, lively)
3
all ears(expression, adjective, sharp, bright, lively)
3
apprehensive(adjective, cool, sensible, deliberate, alert)
3
finical
3
fussy(adjective, thoughtful, sober, cautious, prudent)
3
on the job(expression, adjective, idiom, keen, sharp)
3
particular(adjective, thoughtful, sober, cautious, prudent)
3
provident(adjective, thoughtful, sober, cautious, prudent)
3
responsible(adjective, attentive)
3
thorough(adjective, thoughtful, sober, cautious, prudent)
2
eager(adjective, strong, intense, powerful, alert)
2
exacting(adjective, thoughtful, sober, cautious, prudent)
2
fastidious(adjective, thoughtful, sober, cautious, prudent)
2
not missing a trick(expression, adjective, idiom, sympathetic, alert)
2
on the qui vive(expression, adjective, idiom, keen, sharp)
2
precise(adjective, thoughtful, sober, cautious, prudent)
2
prepared(adjective, alert, careful, cautious, aware)
2
strict
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APASmart Define. (2016). observant thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/observant/thesaurus/synonyms
ChicagoSmart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, observant thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>.
MLASmart Define. "observant thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms>