Dictionary.com
Thesaurus.com
Synonyms

stagnant

American  
[stag-nuhnt] / ˈstæg nənt /

adjective

  1. not flowing or running, as water, air, etc.

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

  3. characterized by lack of development, advancement, or progressive movement.

    a stagnant economy.

  4. inactive, sluggish, or dull.

    Synonyms:
    lazy, inert, dead, lifeless, dormant

stagnant British  
/ ˈstæɡnənt /

adjective

  1. (of water, etc) standing still; without flow or current

  2. brackish and foul from standing still

  3. stale, sluggish, or dull from inaction

  4. not growing or developing; static

"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 stagnant

First recorded in 1660–70; from Latin stāgnant-, stem of stāgnāns “forming a pool,” present participle of stāgnāre “to form a pool of standing water, be inundated”; see stagnate

Explanation

There is a tone to the word stagnant that sounds like what it is: lacking movement, stale, and inactive, especially with exaggerated pronunciation, "staaaagnant." Stagnant came into use in the 17th century as a description for water or air that wasn't moving or circulating, like in a scum-covered pond or a closed-off room. Often things that are stagnant also have a smell from sitting too long in one place. Not that this happens to everyone, but sitting in front of a TV playing video games without moving more than the fingers can make a person stagnant, sometimes with an accompanying odor.

Keep Reading on Vocabulary.com

Vocabulary lists containing stagnant

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.

Stagnant lid: A tectonic state where the planet's outer shell is rigid and unmoving, with very little surface recycling compared to modern plate tectonics.

From Science Daily • Dec. 4, 2025

Stagnant wage growth has long been an issue in Japan that policymakers have been pushing to address.

From The Wall Street Journal • Oct. 10, 2025

Stagnant communities, by contrast, tend to homogenize over time, as people conform to the views of those around them.

From Salon • Mar. 26, 2025

Stagnant growth and sticky inflation have raised concerns about so-called "stagflation".

From BBC • Jan. 7, 2025

Stagnant water and swampy spots provided the ideal breeding ground for mosquitoes, which spread malaria among the capital's residents during mild weather.

From "Ambushed!" by Gail Jarrow