Synonyms of on guard

on guard

phrase

as in alert

paying close attention usually for the purpose of anticipating approaching danger or opportunity

Since it was hunting season, we wore brightly colored vests and remained on guard while hiking.

Synonyms & Similar Words

• alert
• awake
• vigilant
• on tiptoe
• aware
• watchful
• alive
• tentie
• attentive
• on the ball
• careful
• on the qui vive
• on the alert
• regardful
• observant
• sensitive
• wide-awake
• cautious
• Argus-eyed
• wary
• tenty
• conscious
• on one's toes
• keen
• open-eyed
• prepared
• sharp
• mindful
• cognizant
• sleepless
• heedful
• wakeful
• ready
• hypervigilant
• hyperalert
• chary
• sharp-eyed
• observing

Antonyms & Near Antonyms

• asleep
• absent
• dreaming
• absorbed
• sleeping
• engrossed
• preoccupied
• distracted
• unaware
• dreamy
• unconscious
• oblivious
• abstracted
• faraway
• careless
• insensible
• dazed
• daydreaming
• unwitting
• unprepared
• heedless
• unmindful
• unwary
• absentminded
• unthinking
• inattentive
• unknowing
• unheeding
• unready