Watch"ful (?), a. Full of watch;
vigilant; attentive; careful to observe closely; observant; cautious; --
with of before the thing to be regulated or guarded; as, to be
watchful of one's behavior; and with against before the thing
to be avoided; as, to be watchful against the growth of vicious
habits. "Many a watchful night." Shak. "Happy
watchful shepherds." Milton.
'Twixt prayer and watchful love his heart
dividing.
Keble.
Syn. -- Vigilant; attentive; cautious; observant; circumspect;
wakeful; heedful.
-- Watch"ful*ly, adv. --
Watch"ful*ness, n.