Watch’ful, a.

(wŏtch’ful), a. Full of watch; vigilant; attentive; careful to observe; observant; cautious; — with of before the thing to be regulated; as, to be watchful of one’s behavior; and 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. Syn.—Vigilant; attentive; cautious; observant; circumspect; wakeful; heedful.