Synonyms|217Antonyms|40|Broader|0Narrower|0Related|43

68 entries under alert topic. ×

14
watchful(adjective, adverb, keen, sharp, lively)
12
vigilant(adjective, adverb, sharp, bright, lively)
11
wary(adjective, adverb, keen, sharp, bright)
10
cautious(adjective, adverb, keen, careful)
10
observant(adjective, adverb, keen, sharp, bright)
8
careful(adjective, adverb, keen, sharp, bright)
8
heedful(adjective, adverb, sharp, bright, lively)
7
circumspect(adjective, keen, sharp, bright, lively)
7
on the lookout(expression, adjective, idiom, adverb, sharp)
6
awake(adjective, careful, restless, disturbed)
6
guarded(adjective, adverb, keen, anxious)
5
attentive(adjective, keen, sharp, bright, lively)
4
on the watch(expression, adjective, idiom, adverb)
3
all ears(expression, adjective, sharp, bright, lively)
3
on the ball(expression, adjective, idiom, keen, sharp)
3
on your guard(expression, adjective, idiom, attentive)
3
open-eyed(adjective, keen, anxious, careful)
2
aware(adjective, keen, careful, attentive)
2
chary(adjective, careful, considerate, cautious)
2
defensive(adjective, adverb, careful, wary)
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APASmart Define. (2015). on guard thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/on_guard/thesaurus/synonyms
ChicagoSmart Define. 2015. "on guard thesaurus" https://smartdefine.org/on_guard/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, on guard thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/on_guard/thesaurus/synonyms>.
MLASmart Define. "on guard thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/on_guard/thesaurus/synonyms>