140 entries under attentive topic. ×

7
absorbed(adjective, set, attention, deep, fixed)
7
concerned(adjective, careful, thoughtful, sober)
7
diligent(adjective, keen, intense, energetic, lively)
7
thoughtful(adjective, care, careful, sober, cautious)
6
engrossed(adjective, set, determined, deep, fixed)
6
knowing(adjective, understanding, keen, sharp, smart)
6
scrupulous(adjective, careful, thoughtful, sober)
6
sleepless(adjective, keen, careful, restless, disturbed)
5
chary(adjective, reasonable, sensible, deliberate, restrained)
5
concentrating(adjective, set, determined, deep, caring)
5
conscientious(adjective, careful, sober, considerate, aware)
5
interested(adjective, strong, open, friendly, intense)
5
knowledgeable(adjective, understanding, keen, sharp, smart)
5
on the job(expression, adjective, idiom, keen, sharp)
5
prepared(adjective, care, excited, ready, anxious)
5
rapt(adjective, set, attention, deep, fixed)
5
responsible(adjective, smart, bright, competent)
5
sensible(adjective, understanding, open, keen, smart)
5
sensitive(adjective, understanding, open, keen, sharp)
4
advertent(intelligent, watchful, sharp-eyed)
10 years ago|34k views|share |citing 
APASmart Define. (2016). alert thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/alert/thesaurus/synonyms
ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>