62 entries under vigilant topic. ×

9
diligent(adjective, attentive, thorough, meticulous)
9
meticulous(adjective, exact, alert, careful, attentive)
9
on guard(expression, adjective, idiom, adverb, sharp)
9
on the ball(expression, adjective, idiom, sharp, bright)
8
concerned(adjective, kind, friendly, deliberate, alert)
8
particular(adjective, care, thorough, meticulous)
8
wakeful(adjective, sharp, alert, careful, restless)
7
deliberate(adjective, kind, friendly, alert, polite)
7
provident(adjective, care, careful, thoughtful, sober)
7
solicitous(adjective, kind, deliberate, alert, careful)
7
thorough(adjective, careful, thoughtful, sober, scrupulous)
6
finical
6
sharp(adjective, bright, lively, alert, familiar)
5
exacting(adjective, thorough, meticulous, painstaking)
5
interested(adjective, alert, caring, intelligent, thoughtful)
5
responsible(adjective, careful, attentive, thorough, meticulous)
4
alive(adjective, alert, familiar, wise, knowledgeable)
4
all ears(expression, adjective, idiom, sharp, excite)
4
apprehensive(adjective, kind, deliberate, alert, familiar)
4
prepared(adjective, care, alert, careful, cautious)
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APASmart Define. (2015). heedful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/heedful/thesaurus/synonyms
ChicagoSmart Define. 2015. "heedful thesaurus" https://smartdefine.org/heedful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, heedful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/heedful/thesaurus/synonyms>.
MLASmart Define. "heedful thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/heedful/thesaurus/synonyms>