WATCHFULLY
vigilantly, watchfully
(adverb) in a watchful manner
Source: WordNet® 3.1
Etymology
Adverb
watchfully (comparative more watchfully, superlative most watchfully)
In a watchful manner.
Source: Wiktionary
WATCHFUL
Watch"ful, a.
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition