17 entries under attentive topic. ×

9
watchful(adjective, keen, alert, careful, restless)
8
vigilant(adjective, alert, careful, restless, disturbed)
4
wary(adjective, keen, alert, careful, restless)
3
observant(adjective, keen, alert, careful, restless)
2
anxious(adjective, keen, alert, careful, unsettled)
2
cautious(adjective, keen, alert, careful)
2
guarded(keen, anxious, alert, careful, cautious)
2
keen(anxious, alert, careful, cautious)
2
on the alert(expression, idiom, alert, careful, restless)
2
on the ball(expression, idiom, keen, alert, careful)
2
sharp(keen, anxious, alert, careful)
1
acute(keen, anxious, alert, careful, cautious)
1
aware(keen, alert, careful, watchful)
1
careful(adjective, keen, alert, restless, disturbed)
1
circumspect(adjective, keen, alert, careful)
0
heedful(alert, careful, restless, disturbed)
0
on your guard(expression, idiom, alert, watchful)
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APASmart Define. (2015). sleepless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sleepless/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleepless thesaurus" https://smartdefine.org/sleepless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, sleepless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sleepless/thesaurus/synonyms>.
MLASmart Define. "sleepless thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/sleepless/thesaurus/synonyms>