Dictionary.com
Thesaurus.com
Synonyms

incandescent

American  
[in-kuhn-des-uhnt] / ˌɪn kənˈdɛs ənt /

adjective

  1. (of light) produced by incandescence.

  2. glowing or white with heat.

  3. intensely bright; brilliant.

  4. brilliant; masterly; extraordinarily lucid.

    an incandescent masterpiece; incandescent wit.

  5. aglow with ardor, purpose, etc..

    the incandescent vitality of youth.

    Synonyms:
    dynamic, brilliant

incandescent British  
/ ˌɪnkænˈdɛsənt /

adjective

  1. emitting light as a result of being heated to a high temperature; red-hot or white-hot

  2. informal extremely angry; raging

"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

  • incandescently adverb
  • nonincandescent adjective
  • nonincandescently adverb

Etymology

Origin of incandescent

1785–95; < Latin incandēscent- (stem of incandēscēns ), present participle of incandēscere to glow. See in- 2, candescent

Explanation

When heated, coals become incandescent, which means that they glow red-hot. You could also describe a brilliant and moving novel as incandescent. Incandescent, like the word candle, has its origins in the Latin word candere meaning "to glow or shine." Combined with the suffix in meaning "within," its meaning can be easily pulled from the combination of its root words: "to glow or shine from within." Fire crackers are incandescent because they give off brilliant lights when heated, but look up at a blazing fireworks display, and you'll find it's quite moving, or incandescent with intensity and brilliance.

Keep Reading on Vocabulary.com

Vocabulary lists containing incandescent

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.

Mark Joseph Stern: This was one of the most incandescent judicial opinions I think I have ever seen.

From Slate • Jan. 23, 2026

Officials said Friday that the fire was likely caused by incandescent candles and sparklers attached to Champagne bottles that ignited a ceiling.

From The Wall Street Journal • Jan. 2, 2026

Overnight, AFP journalists saw Ukraine using tracer bullets and missile defence systems, and incandescent debris falling over large areas above the capital.

From Barron's • Nov. 14, 2025

The prime minister, I am told, is "incandescent" at how all of this has played out and is looking into how it all happened.

From BBC • Nov. 13, 2025

Exhibitors gradually completed their installations, and electricians removed the last misconnects from the elaborate circuits that linked the fair’s nearly 200,000 incandescent bulbs.

From "The Devil in the White City" by Erik Larson