Synonyms|170Antonyms|112|Broader|5Narrower|0Related|284

30 entries under keen topic. ×

18
watchful(adjective, alert, restless, feature, characteristic)
16
alert(adjective, sharp, bright, careful)
13
sleepless(adjective, anxious, alert, careful)
11
observant(adjective, alert, careful, restless)
10
open-eyed(adjective, anxious, alert, careful)
10
wary(adjective, alert, careful, restless)
9
attentive(adjective, alert, careful, restless)
7
unsleeping(adjective, anxious, alert, careful)
7
wide-awake(adjective, anxious, alert, careful)
5
careful(adjective, alert, restless, cautious)
5
cautious(adjective, alert, careful, attentive)
5
sharp(adjective, bright, anxious, alert)
4
on the lookout(expression, adjective, idiom, care)
3
circumspect(adjective, sharp, alert, careful)
3
on the ball(expression, adjective, idiom, alert)
2
aware(adjective, alert, careful, attentive)
2
guarded(adjective, care, anxious, alert)
2
on the job(expression, adjective, idiom, anxious)
1
acute(anxious, alert, careful, cautious)
1
agog(anxious, alert, careful, cautious)
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APASmart Define. (2015). wakeful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/wakeful/thesaurus/synonyms
ChicagoSmart Define. 2015. "wakeful thesaurus" https://smartdefine.org/wakeful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, wakeful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/wakeful/thesaurus/synonyms>.
MLASmart Define. "wakeful thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/wakeful/thesaurus/synonyms>