'Fitful' definitions:

Definition of 'fitful'

From: WordNet
adjective
Occurring in spells and often abruptly; "fitful bursts of energy"; "spasmodic rifle fire" [syn: fitful, spasmodic]
adjective
Intermittently stopping and starting; "fitful (or interrupted) sleep"; "off-and-on static" [syn: fitful, interrupted, off-and-on(a)]

Definition of 'Fitful'

From: GCIDE
  • Fitful \Fit"ful\, a. [From 7th Fit.] Full of fits; irregularly variable; impulsive and unstable. [1913 Webster]
  • After life's fitful fever, he sleeps well. --Shak. -- {Fit"ful*ly}, adv. -- {Fit"ful*ness}, n. [1913 Webster]
  • The victorious trumpet peal Dies fitfully away. --Macaulay. Fithel

Synonyms of 'fitful'

From: Moby Thesaurus