35 entries under careful topic. ×

2
open-eyed(keen, anxious, alert, cautious)
2
sharp(keen, anxious, alert, attentive)
1
acute(keen, anxious, alert, cautious)
1
agog(keen, anxious, alert, cautious)
1
aware(keen, alert, attentive, watchful)
1
circumspect(adjective, keen, alert, attentive)
1
looking for(expression, keen, anxious, alert)
1
looking to(expression, keen, anxious, alert)
1
on alert(expression, keen, anxious, alert)
1
on the qui vive(expression, idiom, keen, alert)
1
on toes(expression, keen, anxious, alert)
1
waiting on(expression, keen, anxious, alert)
1
with eyes peeled(expression, idiom, keen, alert)
1
with weather eye open(expression, idiom, keen, anxious)
0
heedful(alert, restless, disturbed, attentive)
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APASmart Define. (2015). sleepless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sleepless/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleepless thesaurus" https://smartdefine.org/sleepless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, sleepless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sleepless/thesaurus/synonyms>.
MLASmart Define. "sleepless thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/sleepless/thesaurus/synonyms>