166 entries under attentive topic. ×

6
loyal(adjective, compliant, submissive, docile)
6
sensitive(adjective, understanding, open, kind, keen)
6
wakeful(adjective, keen, alert, careful, restless)
5
advertent(adjective, sympathetic, alert, witting)
5
alive(adjective, cool, sensible, alert, significant)
5
bright(adjective, open, cool, sharp, friendly)
5
concerned(adjective, kind, friendly, deliberate, alert)
5
conscientious(adjective, careful, thoughtful, sober, considerate)
5
considerate(adjective, kind, reasonable, friendly, sensible)
5
considering(adjective, alert, watchful, circumspect)
5
faithful(compliant, submissive, docile, deferential)
5
searching(adjective, alert, watchful, penetrating)
5
solicitous(adjective, kind, deliberate, alert, careful)
5
surveying(adjective, alert, watchful, circumspect)
4
absorbed(adjective, attention)
4
chary(adjective, reasonable, sensible, deliberate, restrained)
4
cognizant(adjective, understanding, cool, sensible, significant)
4
contemplating(adjective, alert, watchful, circumspect)
4
law-abiding(adjective, compliant, submissive, docile)
4
on the watch(expression, adjective, idiom, adverb, 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>