vigilant
Always on guard
Vigilant means watchfully alert, especially to danger or trouble.
A vigilant guard notices small disturbances.
Vigilant parents monitor their children's online activity.
The word implies sustained, careful attention rather than a single moment of awareness: Travelers should remain vigilant in crowded areas.
She kept a vigilant eye on the stock market.
Carefully attentive, observant
- attentivePaying close notice
- awareHaving knowledge of
- heedfulPaying close attention
- mindfulConsciously attentive
wary · cautious · circumspect · prudent · careful · guarded · sharp · keen
Protective caretaker of another
- sentinelGuard who monitors
- watchmanBuilding security guard
- lookoutWatcher or vista point
- sentryGuard on duty
patrol · custodian · warden · defender · overseer · safeguard · shepherd · gatekeeper
Systematic observation of subjects
- monitoringOngoing observation of something
- checkpointInspection station on route
- perimeterShape's outer edge length
- alarmUrgent warning signal
guard · lockdown · enforcement · fortification · barrier · defense · screening · inspection
Lacking faith in others
- suspiciousInclined to distrust
- questioningSeeking answers through inquiry
- criticalExpressing disapproval or importance
- discerningHaving keen judgment
scrutinizing · analytical · doubting · probing · inquiring · fact-checking · vetting · wary
State of being prepared
- proactiveActing before problems arise
- precautionPreventive safety measure
- drillsRepetitive training routines
- backupStored duplicate for recovery
safeguard · training · preemptive · foresight · anticipatory · preventive
watchful
Carefully attentive, observant
mindful · wary · cautious · circumspect · prudent · careful · guarded · sharp · keen · eagle-eyed
guardian
Protective caretaker of another
sentry · patrol · custodian · warden · defender · overseer · safeguard · shepherd · gatekeeper · monitor
surveillance
Systematic observation of subjects
- monitoringOngoing observation of something
- checkpointInspection station on route
- perimeterShape's outer edge length
alarm · guard · lockdown · enforcement · fortification · barrier · defense · screening · inspection · counterintelligence
distrustful
Lacking faith in others
- suspiciousInclined to distrust
- questioningSeeking answers through inquiry
- criticalExpressing disapproval or importance
discerning · scrutinizing · analytical · doubting · probing · inquiring · fact-checking · vetting · wary · guarded
readiness
State of being prepared
- proactiveActing before problems arise
- precautionPreventive safety measure
- drillsRepetitive training routines
backup · safeguard · training · preemptive · foresight · anticipatory · preventive
- defensedefense, defending, protecting, protection, security
- attentionattention, focus, focused, attentiveness, focused attention
- cautioncareful, be careful, cautious, caution, watch out
- vigilancewatchfulness, alertness, watchful, attentiveness, alert
- alertnessalert, alertness, attentive, watchful, awareness
- attentivealert, aware, focused, mindful, watchful
vigilantinattentive
Not paying attention
oblivious · unaware · heedless · unmindful · distracted
vigilantcareless
Inattentive, prone to mistakes
negligent · neglectful · reckless · lax · remiss
vigilantasleep
In a state of rest
unconscious · insensible · unready · dormant · drowsy
- vigilante justiceUnauthorized punishment by civilians
- masked vigilanteConcealed identity crime-fighter
- be vigilantMaintain careful awareness
- vigilante groupUnauthorized civilian law enforcement