60 entries under adjective topic. ×

3
unwavering
3
wary(keen, alert, careful, cautious)
2
agile
2
careful(keen, alert, cautious, attentive)
2
keen(anxious, alert, careful, cautious)
2
on the ball(expression, idiom, keen, alert)
2
on the job(expression, idiom, keen, anxious)
2
quick
2
ready(alert, careful, cautious, attentive)
2
resolute
2
tireless
2
undeviating
1
all ears(expression, alert, careful, cautious)
1
aware(keen, alert, careful, attentive)
1
cautious(keen, alert, careful, attentive)
1
chary(alert, careful, cautious, attentive)
1
circumspect(keen, alert, careful, cautious)
1
glued(alert, careful, cautious, attentive)
1
guarded(keen, anxious, alert, careful)
1
heedful(alert, careful, cautious, disturbed)
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APASmart Define. (2015). unsleeping thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unsleeping/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsleeping thesaurus" https://smartdefine.org/unsleeping/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unsleeping thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unsleeping/thesaurus/synonyms>.
MLASmart Define. "unsleeping thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/unsleeping/thesaurus/synonyms>