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Synonyms

incessant

American  
[in-ses-uhnt] / ɪnˈsɛs ənt /

adjective

  1. continuing without interruption; unending; ceaseless.

    an incessant noise.

    Synonyms:
    unremitting, unrelenting, eternal, perpetual, never-ending, continuous, constant, unceasing
    Antonyms:
    intermittent

incessant British  
/ ɪnˈsɛsənt /

adjective

  1. not ceasing; continual

"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

Etymology

Origin of incessant

First recorded in 1425–75; late Middle English incessaunte, from Late Latin incessant-, equivalent to Latin in- negative prefix + cessant- (stem of cessāns ), present participle of cessāre “to stop work”; see in- 3, cease, -ant

Explanation

Something incessant continues without interruption. When you're on a cross-country flight, it's tough to tolerate the incessant crying of a baby. In Latin, cessare means "to stop," so when you add the negative prefix in-, you get a word meaning "never stopping." A near synonym is continual, but something incessant is more relentless; ceaseless is a closer synonym. It's rare to find incessant used in a positive way. Even incessant sunshine would grow boring.

Keep Reading on Vocabulary.com

Vocabulary lists containing incessant

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.

See Examples For:

He and his team take what’s known as an integrated mosquito management approach to protect Salt Lake City residents from the incessant itch that the pests bring.

From Slate Aug. 4, 2026

What about the incessant noise of social media?

From BBC Jun. 26, 2026

Attorney’s Office of the Western District of Virginia to probe whether the incessant violations of antipollution laws had risen to the level of criminal behavior, people familiar with the matter said.

From Salon Jun. 10, 2026

In Meggison’s case, the incessant bills and collection calls, coupled with the anguish of divorce, were like an earsplitting noise she couldn’t quiet.

From The Wall Street Journal May 29, 2026

They went to the mouth of the cave and looked out at the rain, heavy, incessant, falling straight down through the sodden air.

From "The Book of Dust: La Belle Sauvage" by Philip Pullman

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