Synonyms of watchful in English:

watchful


See US English definition of watchful

See UK English definition of watchful

See Spanish definition of vigilante

adjective

1‘her mother kept a watchful eye on her’

SYNONYMS
observant, alert, vigilant, hypervigilant, attentive, perceptive
awake, wakeful, aware, heedful, sharp
sharp-eyed, keen-eyed, eagle-eyed, hawk-eyed, gimlet-eyed, with one's eyes open
on the lookout, on the qui vive, wary, cautious, careful, suspicious, circumspect, chary
informal with one's eyes peeled, with one's eyes skinned
ANTONYMS

inattentive, careless