watchful
watch‧ful /ˈwɒtʃfəl $ ˈwɑːtʃ-, ˈwɒːtʃ-/
adjective1. very careful to notice what is happening, and to make sure that everything is all right:
The entrances are guarded by watchful security staff.
His eyes were watchful.
Keep a watchful eye on elderly residents.
2. under sb’s watchful eye following someone’s instructions or with someone’s help:
Learn the basics under the watchful eye of a qualified instructor.
—watchfully adverb
—watchfulness noun [uncountable]
watch‧ful /ˈwɒtʃfəl $ ˈwɑːtʃ-, ˈwɒːtʃ-/
adjective1. very careful to notice what is happening, and to make sure that everything is all right: 2. under sb’s watchful eye following someone’s instructions or with someone’s help:
—watchfully adverb
—watchfulness noun [uncountable]