vigilant
//ˈvɪdʒ.ɪ.lənt//
Adjective
vigilantCanonical form
more vigilantComparative
most vigilantSuperlative
1
Keeping careful watch for possible danger or difficulties; alert and watchful.
Security guards must remain vigilant at all times.
2
Attentive to detecting and avoiding error, danger, or harm.
Parents must remain vigilant about their children's online activities.