135 entries under attentive topic. ×

8
sleepless(adjective, keen, alert, careful, restless)
8
solicitous(adjective, upset, excited, anxious, alert)
8
thoughtful(adjective, reasonable, sensible, alert, careful)
7
conscious(adjective, understanding, cool, keen, sensible)
7
meticulous(adjective, alert, careful, prudent)
7
on the ball(expression, adjective, idiom, keen, sharp)
7
sharp-eyed(adjective, alert, intelligent, vigilant)
6
alive(adjective, cool, alert, significant, animate)
6
anxious(adjective, upset, keen, excited, ready)
6
concerned(adjective, upset, excited, anxious, alert)
6
eagle-eyed(adjective, alert, intelligent, sharp-eyed)
6
keen(adjective, understanding, sensible, certain, alert)
6
prepared(adjective, alert, eager, aware)
6
preventive(adjective, alert, careful, opposing)
6
scrupulous(adjective, alert, careful, prudent)
6
suspicious(adjective, restrained, alert, shy, hesitant)
5
defensive(adjective, alert, careful, caring)
5
diligent(adjective, vigilant)
5
unsleeping(adjective, keen, alert, careful, disturbed)
4
absorbed(adjective, set, attention, deep, fixed)
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APASmart Define. (2016). watchful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/watchful/thesaurus/synonyms
ChicagoSmart Define. 2016. "watchful thesaurus" https://smartdefine.org/watchful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, watchful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/watchful/thesaurus/synonyms>.
MLASmart Define. "watchful thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/watchful/thesaurus/synonyms>