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Synonyms

smolder

American  
[smohl-der] / ˈsmoʊl dər /
Or smoulder

verb (used without object)

  1. to burn without flame; undergo slow or suppressed combustion.

  2. to exist or continue in a suppressed state or without outward demonstration.

    Hatred smoldered beneath a polite surface.

  3. to display repressed feelings, as of indignation, anger, or the like.

    to smolder with rage.


noun

  1. dense smoke resulting from slow or suppressed combustion.

  2. a smoldering fire.

smolder British  
/ ˈsməʊldə /

verb

  1. the US spelling of smoulder

"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

  • unsmoldering adjective

Etymology

Origin of smolder

1275–1325; (noun) Middle English smolder smoky vapor, dissimilated variant of smorther smother; (v.) Middle English (as present participle smolderende ), derivative of the noun

Explanation

When a fire is barely burning, it's smoldering. Fires can smolder for days without anyone's knowing, then burst into a conflagration that gets the fire department sirens wailing all over town. Smolder is a word that is often used figuratively to describe situations or people's feelings. You might say tensions between the North and South smoldered for years before the outbreak of the Civil War. And if your school cafeteria eliminates tater tots from the menu, students' smoldering dissatisfaction with the menu options might erupt into all-out food fight.

Keep Reading on Vocabulary.com

Vocabulary lists containing smolder

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.

"Peatlands and organic soils can smolder for weeks to years, releasing enormous amounts of ancient carbon."

From Science Daily • Mar. 4, 2026

As a result, they may overlook slower, less visible fires that smolder deep within peat and organic soils.

From Science Daily • Mar. 4, 2026

Passions still smolder below the surface, but there is not enough oxygen to let them flame into life.

From The Wall Street Journal • Jan. 7, 2026

Embers from that blaze, called the Lachman fire, continued to smolder for days underground before being released amid hurricane-force winds, becoming the Palisades fire.

From Los Angeles Times • Oct. 11, 2025

And though he, too, doesn’t speak, his dark eyes smolder, telling me something I don’t quite understand.

From "An Ember in the Ashes" by Sabaa Tahir