68 entries under alert topic. ×

2
on the alert(expression, adjective, idiom, careful)
2
on the job(expression, adjective, idiom, keen, sharp)
2
on the qui vive(expression, adjective, idiom, keen, sharp)
2
ready(adjective, set, sharp, bright, lively)
2
sleepless(keen, anxious, careful, disturbed)
2
wide-awake(adjective, keen, sharp, bright, lively)
1
active(sharp, bright, lively, aware)
1
acute(keen, anxious, careful, attentive)
1
agog(keen, anxious, careful, attentive)
1
anxious(keen, careful, attentive, watchful)
1
apprehensive(adjective, aware, clued-in)
1
bright(sharp, lively, aware, attentive)
1
cagey(adjective, sharp, bright, lively)
1
glued(adjective, careful, cautious, attentive)
1
good hands(expression, sharp, bright, lively)
1
heads up(expression, sharp, bright, lively)
1
hip(sharp, bright, lively, attentive)
1
hooked(adjective, careful, cautious, attentive)
1
jazzed(sharp, bright, lively, attentive)
1
keen(adjective, anxious, careful, cautious)
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APASmart Define. (2015). on guard thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/on_guard/thesaurus/synonyms
ChicagoSmart Define. 2015. "on guard thesaurus" https://smartdefine.org/on_guard/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, on guard thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/on_guard/thesaurus/synonyms>.
MLASmart Define. "on guard thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/on_guard/thesaurus/synonyms>