wakeful

  • (s) carefully observant or attentive; on the lookout for possible danger
    • 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
    open-eyed, vigilant, argus-eyed,
  • (s) (of sleep) easily disturbed
    • in a light doze
    • a light sleeper
    • a restless wakeful night
    light,
  • (s) marked by full consciousness or alertness
    • worked every moment of my waking hours
    waking,

Synonyms

open-eyed vigilant argus-eyed light waking

Words of close approximity

wakefulness