watchful
Definitions
Alertly observant or vigilant.
Closely observant or attentive to potential danger or change.
Examples
The watchful mother kept a close eye on her children as they played near the water.
Security guards remained watchful throughout the night to ensure the safety of the building.
He maintained a watchful gaze over the horizon, waiting for the first sign of the approaching storm.
Synonyms
Antonyms
inattentive negligent careless oblivious unobservant distracted heedless