stagnant

adjective

stag·​nant ˈstag-nənt 

1

a(1)

: not flowing in a current or stream

stagnant water

(2)

: without inflow and outflow

a stagnant pool

b

: stale

long disuse had made the air stagnant and foul

—Bram Stoker

2

: not advancing or developing

a stagnant economy

stagnancy

ˈstag-nən(t)-sē 

noun

stagnantly adverb

Examples of stagnant in a Sentence

… many people who make their living in academia are reasonably well insulated from financial devastation. For most tenured faculty, the worst they are likely to experience is stagnant pay and deferred retirement. —Andrew Delbanco, The New York Review of Books, 14 May 2009

"For adults, entertainment needs to be relevant to their life." Chen points to the stagnant US comic book industry as an example of irrelevance. "I don't want to see video games become like American superhero comics," he admits. "American comics live and die based on a very niche audience. In Japan, comics are a national art form." —Sid Shuman, Gamepro, May 2009

The blue-green algae blooms can occur in both freshwater and saltwater environments, but are most commonly found in stagnant bodies of water enriched by runoff, Paerl said. Public health officials in the southeastern United States are beginning to monitor water supplies for some of the toxins. —Bridget M. Kuehn, Journal of the American Medical Association, 25 May 2005

Recent Examples on the Web

When air is stagnant, pollutants don't get dispersed, allowing ozone to build up to unhealthy levels. —Joe Edwards, MSNBC Newsweek, 8 Aug. 2025

The bacterium particularly thrives in stagnant water between 77 and 113 degrees Fahrenheit (25 and 45 degrees Celsius). —Meghan Bartels, Scientific American, 5 Aug. 2025

After a couple of decades during which U.S. power demand has remained relatively stagnant, domestic electricity consumption is expected to spike by 25% from 2023 to 2035 and roughly 60% from 2023 to 2050, according to the International Energy Agency. —Jordan Blum, Fortune, 1 Aug. 2025

Remember, however, that blind optimism in unhealthy or completely stagnant relationships can delay necessary change or mask deeper issues. —Mark Travers, Forbes.com, 31 July 2025

Word History

Etymology

see stagnate

First Known Use

1610, in the meaning defined at sense 1a(1)

Kids Definition

stagnant

adjective

stag·​nant ˈstag-nənt 

1

: not flowing in a current or stream : motionless

2

: not active or brisk

stagnant business