ad. 发作地, 断断续续地

[ adv ]
in a fitful manner
<adv.all>
he slept fitfully

Fitful \Fit"ful\, a. [From 7th {Fit}.]
Full of fits; irregularly variable; impulsive and unstable.

After life's fitful fever, he sleeps well. --Shak.
-- {Fit"ful*ly}, adv. -- {Fit"ful*ness}, n.

The victorious trumpet peal
Dies fitfully away. --Macaulay.