open-eyed Synonyms

wakeful vigilant argus-eyed tenty surprised sleepless sharp regardful ready perceptive observing observant wary watchful wide-awake unsleeping on the watch on the lookout on guard on the ball wide-eyed hypervigilant hyperalert all ears enthralled moon-eyed mindful mesmerized cautious careful aware awake attentive astounded alive alert agog acute chary circumspect conscious lidless intrigued interested intent hypnotized heedful hawk-eyed guarded engaged