On one's guard synonyms | adjectives

Synonyms for On one's guard as an Adjective

• on guard
• upon one's guard
• on your guard
• wary

  vigilant
• guarded
• alert

  vigilant
• cautious

  vigilant
• vigilant
• watchful

  vigilant
• careful

  vigilant
• observant
• circumspect
• chary
• attentive
• on the alert
• heedful
• on the lookout
• on the qui vive
• on one's toes
• all ears
• aware
• prudent
• mindful
• awake
• wide awake
• unsleeping
• concentrating
• sharp
• shy