on alert
- vigilantKeenly aware of danger
- watchfulCarefully attentive, observant
- waryGuardedly alert
- guardedWary and restrained
- readySuitable for use now
tense · aware · cautious · sentinel · lookout · poised · braced · attentive · sharp · edgy · scanning · radar · siren · alarm · danger · threat · patrol · keen
vigilance state
on alertoff guard
Not prepared for something
unaware · asleep · oblivious · unprepared · relaxed
security posture
on alertstood down
Withdrew from position
at rest · demobilized · off duty · stand down · on leave