Xem thêm: argus-eyed, open-eyed, vigilant, watchful, light, waking
adj.
a policy of open-eyed awareness
the vigilant eye of the town watch
there was a watchful dignity in the room
a watchful parent with a toddler in tow
in a light doze
a light sleeper
a restless wakeful night
worked every moment of my waking hours