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

116 entries under adjective topic. ×

3
canny(cautious, suspicious, watchful)
3
on the ball(expression, idiom, keen, sharp)
3
on your guard(expression, idiom, alert, attentive)
3
open-eyed(keen, anxious, alert, careful)
2
aware(keen, alert, careful, attentive)
2
chary(alert, careful, considerate, cautious)
2
custodial(defensive, overprotective, preservative)
2
defensive(adverb, alert, careful, wary)
2
eagle-eyed
2
keen-eyed
2
leery(cautious, suspicious, watchful)
2
noncommittal
2
on the alert(expression, idiom, alert, careful)
2
on the job(expression, idiom, keen, sharp)
2
on the qui vive(expression, idiom, keen, sharp)
2
ready(set, sharp, bright, lively)
2
regardful
2
sharp-eyed
2
tentative
2
upon one's guard
For more, visit On_guard on Power Thesaurus
11 years ago|2.2k views|share |citing 
APASmart Define. (2015). on guard thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/on_guard/thesaurus/synonyms
ChicagoSmart Define. 2015. "on guard thesaurus" https://smartdefine.org/on_guard/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, on guard thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/on_guard/thesaurus/synonyms>.
MLASmart Define. "on guard thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/on_guard/thesaurus/synonyms>