vigilance
noun
[ ˈvɪdʒɪl(ə)ns ]
• the action or state of keeping careful watch for possible danger or difficulties.
• "security duties that demand long hours of vigilance"
Similar:
watchfulness,
careful observation,
surveillance,
attentiveness,
attention,
alertness,
guardedness,
carefulness,
care,
caution,
cautiousness,
wariness,
chariness,
circumspection,
prudence,
heedfulness,
heed,
mindfulness,
Opposite:
inattentiveness,
Origin:
late 16th century: from French, or from Latin vigilantia, from vigilare ‘keep awake’, from vigil (see vigil).