51 entries under alert topic. ×

18
watchful(adjective, restless, feature, characteristic)
17
vigilant(adjective, sharp, care, careful)
13
awake(adjective, care, careful, restless)
13
sleepless(adjective, keen, anxious, careful)
11
observant(adjective, keen, careful, restless)
10
open-eyed(adjective, keen, anxious, careful)
10
wary(adjective, keen, careful, restless)
9
attentive(adjective, keen, careful, restless)
7
alive(adjective, careful, restless, disturbed)
7
unsleeping(adjective, keen, anxious, careful)
7
waking(verb, adjective, careful, restless)
7
wide-awake(adjective, keen, anxious, careful)
5
careful(adjective, keen, restless, cautious)
5
cautious(adjective, keen, careful, attentive)
5
insomniac(adjective, restless)
5
on the alert(expression, adjective, idiom, care)
5
sharp(adjective, keen, bright, anxious)
4
on the lookout(expression, adjective, idiom, keen, care)
3
astir(adjective, careful, restless, disturbed)
3
circumspect(adjective, keen, sharp, careful)
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APASmart Define. (2015). wakeful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/wakeful/thesaurus/synonyms
ChicagoSmart Define. 2015. "wakeful thesaurus" https://smartdefine.org/wakeful/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, wakeful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/wakeful/thesaurus/synonyms>.
MLASmart Define. "wakeful thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/wakeful/thesaurus/synonyms>