Synonyms|572Antonyms|111|Broader|6Narrower|1Related|510

97 entries under observant topic. ×

2
on the job(expression, adjective, idiom, sharp, bright)
2
on the qui vive(expression, adjective, idiom, sharp, bright)
2
percipient(adjective, understanding, cool, keen, sensible)
2
quick(adjective, understanding, cool, sharp, bright)
2
suspicious(adjective, restrained, alert, careful, hesitant)
2
understanding(adjective, keen, sensible, certain, alert)
2
with it(expression, understanding, keen, sharp, bright)
1
apperceptive(adjective, understanding, keen, sensible, certain)
1
apprised(adjective, understanding, keen, sensible, certain)
1
assured(adjective, understanding, keen, sensible, certain)
1
astute(adjective, understanding, cool, significant, intelligent)
1
au courant(expression, adjective, understanding, keen, sensible)
1
brainy(adjective, understanding, cool, significant, intelligent)
1
certain(adjective, understanding, keen, sensible, alert)
1
felt(adjective, understanding, keen, sensible, certain)
1
glued(adjective, alert, careful, caring, thoughtful)
1
hep to(expression, adjective, understanding, keen, sensible)
1
hooked(adjective, alert, careful, caring, thoughtful)
1
in on(expression, adjective, understanding, keen, sensible)
1
in right mind(expression, adjective, idiom, understanding, keen)
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APASmart Define. (2015). vigilant thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vigilant/thesaurus/synonyms
ChicagoSmart Define. 2015. "vigilant thesaurus" https://smartdefine.org/vigilant/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, vigilant thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vigilant/thesaurus/synonyms>.
MLASmart Define. "vigilant thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/vigilant/thesaurus/synonyms>