166 entries under attentive topic. ×

4
ready(adjective, open, sharp, friendly, bright)
4
respectful(adjective, careful, considerate, aware)
4
wide-awake(adjective, keen, sharp, bright, lively)
3
active(sharp, bright, lively, alert, aware)
3
agog(adjective, strong, keen, intense, powerful)
3
all ears(expression, adjective, sharp, bright, lively)
3
apprehensive(adjective, cool, sensible, deliberate, alert)
3
cagey(adjective, sharp, bright, lively, careful)
3
clever(adjective, cool, sharp, bright, lively)
3
concentrating(adjective, caring, thoughtful, considerate, responsive)
3
correct(adjective, alert, watchful, scrupulous)
3
discovering(adjective, alert, watchful, sharp-eyed)
3
duteous(adjective, compliant, submissive, docile)
3
engrossed
3
intentive(adjective, sympathetic, alert, witting)
3
knowing(adjective, understanding, cool, keen, sharp)
3
knowledgeable(adjective, understanding, cool, keen, sharp)
3
on the job(expression, adjective, idiom, keen, sharp)
3
preventive(adjective, alert, careful, protective)
3
rapt(adjective, attention)
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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>