Dictionary.com
Thesaurus.com
Synonyms

fitful

American  
[fit-fuhl] / ˈfɪt fəl /

adjective

  1. coming, appearing, acting, etc., in fits or by spells; recurring irregularly.

    Synonyms:
    haphazard, erratic, intermittent, sporadic

fitful British  
/ ˈfɪtfʊl /

adjective

  1. characterized by or occurring in irregular spells

    fitful sleep

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • fitfully adverb
  • fitfulness noun

Etymology

Origin of fitful

First recorded in 1595–1605; fit 2 + -ful

Explanation

An adjective that sounds a little like what it means, fitful means stopping and starting, on-again off-again, switching suddenly. I had a fitful night's sleep: I woke up several times throughout the night. A fit is a disturbance that happens without warning, like a tantrum, tremor, or spasm. If something is fitful, it's "full of fits." A night at the opera is a night of fitful pleasures: the arias are cool, but the rest of the show is boring. I've made only fitful progress trying to lose weight, because I lose only a few pounds at a time, and they almost always come right back: my progress is fitful because it comes in "fits and starts."

Keep Reading on Vocabulary.com

Vocabulary lists containing fitful

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

No other Victorian poet could have brought off such a fitful and obsessive work; no one else could have sustained such music and emotion for more than 100 pages.

From The Wall Street Journal • Feb. 20, 2026

As treatment progresses, if the once fitful sleeper finds they’re sleeping longer and more easily, they extend their time in bed to match their newfound sleep ability.

From Slate • Jul. 19, 2025

We dressed for the day, then returned to bed for a couple hours of fitful sleep, ready to go when we needed to.

From Los Angeles Times • Feb. 28, 2025

Over time, the late night TV host becomes your best friend, or a figure that haunts your fitful dreams.

From New York Times • Mar. 21, 2024

Here the breeze was fitful and allowed the strings of the parachute to tangle and festoon; and the figure sat, its helmeted head between its knees, held by a complication of lines.

From "Lord of the Flies" by William Golding