— watchfully , adv. — watchfulness , n.
/woch"feuhl/ , adj.
1. vigilant or alert; closely observant: The sentry remained watchful throughout the night.
2. Archaic. wakeful.
[ 1540-50; WATCH + -FUL ]
Syn. 1. attentive, heedful, careful, circumspect, cautious, wary. See alert .