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Synonyms

stagnate

American  
[stag-neyt] / ˈstæg neɪt /

verb (used without object)

stagnated, stagnating
  1. to cease to run or flow, as water, air, etc.

  2. to be or become stale or foul from standing, as a pool of water.

  3. to stop developing, growing, progressing, or advancing.

    My mind is stagnating from too much TV.

  4. to be or become sluggish and dull.

    When the leading lady left, the show started to stagnate.


verb (used with object)

stagnated, stagnating
  1. to make stagnant.

stagnate British  
/ stæɡˈneɪt, ˈstæɡˌneɪt /

verb

  1. (intr) to be or to become stagnant

"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 stagnate

1660–70; < Latin stāgnātus (past participle of stāgnāre ), equivalent to stāgn ( um ) pool of standing water + -ātus -ate 1

Explanation

If after high school you choose to live in your parents' house, keep the same job, and spend time with the same friends, your mother might worry that you've decided to stagnate, or stop moving forward. When water stagnates, it stops moving and then sometimes begins to smell bad and attract mosquitoes. Think of a marshy pond or an old puddle. Similarly in the figurative sense, when the economy or society stagnates, it doesn't just sit still, it loses momentum. The word carries with it a negative connotation as something that stagnates really should be moving.

Keep Reading on Vocabulary.com

Vocabulary lists containing stagnate

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.

As I have written elsewhere, this was the pivotal decade when American culture began to stagnate.

From Salon • Apr. 19, 2026

While the Premier League clubs benefit from ever-increasing TV deals and other European leagues attract heavy investment, Serie A has seen that source of revenue stagnate.

From BBC • Mar. 25, 2026

Wage growth is concentrated at the top, while median wages stagnate.

From MarketWatch • Mar. 18, 2026

Investors were already worrying that sales growth could stagnate because stubborn inflation and job-market uncertainty has made Americans less willing to dip into their pockets.

From Barron's • Jan. 21, 2026

Without standardized materials and methods, they worried that the field of tissue culture would stagnate.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot