Dictionary.com
Thesaurus.com
Synonyms

solemn

American  
[sol-uhm] / ˈsɒl əm /

adjective

  1. grave, sober, or mirthless, as a person, the face, speech, tone, or mood.

    solemn remarks.

    Synonyms:
    serious, unsmiling
    Antonyms:
    humorous
  2. gravely or somberly impressive; causing serious thoughts or a grave mood.

    solemn music.

    Synonyms:
    stately, imposing, august
    Antonyms:
    trivial
  3. serious or earnest.

    solemn assurances.

  4. characterized by dignified or serious formality, as proceedings; of a formal or ceremonious character.

    a solemn occasion.

    Synonyms:
    ceremonial, ritual
  5. made in due legal or other express form, as a declaration or agreement.

    a solemn oath.

  6. marked or observed with religious rites; having a religious character.

    a solemn holy day.

    Synonyms:
    sacred, devotional
  7. uttered, prescribed, or made according to religious forms.

    a solemn ban on sacrifice.


solemn British  
/ ˈsɒləm /

adjective

  1. characterized or marked by seriousness or sincerity

    a solemn vow

  2. characterized by pomp, ceremony, or formality

  3. serious, glum, or pompous

  4. inspiring awe

    a solemn occasion

  5. performed with religious ceremony

  6. gloomy or sombre

    solemn colours

"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

Related Words

See grave 2.

Other Word Forms

  • oversolemn adjective
  • oversolemnness noun
  • semisolemn adjective
  • semisolemnness noun
  • solemnly adverb
  • solemnness noun
  • supersolemn adjective
  • supersolemnness noun
  • unsolemn adjective
  • unsolemnness noun

Etymology

Origin of solemn

First recorded in 1275–1325; Middle English solem(p)ne, from Old French or directly from Late Latin sōlennis, sōlempnis, Latin sōlemnis, variant of sollemnis “consecrated, holy,” derivative of sollus “whole”

Explanation

If you’ve ever attended a funeral, you were probably struck by how quiet, earnest, and solemn the mood was. You can use the word solemn to describe anything that's really serious and dignified. The adjective solemn comes from the Latin sollemnis, which means formal or ceremonial. You can still use it to describe a ceremony or event, but it's also a good word for talking about someone who's serious and sincere and maybe lacks a sense of humor about certain things. Here's a trick for remembering it: Think of a "sole man," a serious guy standing alone at a party talking to no one.

Keep Reading on Vocabulary.com

Vocabulary lists containing solemn

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.

“Government officials have a solemn duty to provide honest, well-grounded facts and advice in service of the public interest—not to advance their own personal or ideological agendas.”

From The Wall Street Journal • Apr. 28, 2026

While it’s meant to be a solemn moment, was that uncomfortable for you as a comedian?

From Los Angeles Times • Apr. 22, 2026

That impulsiveness also manifests itself in "violations" of diplomatic protocol and solemn military ceremonies, Rowland said.

From Barron's • Apr. 21, 2026

"This tragedy is a solemn reminder of the risks faced by those Mexican and U.S. officials who are dedicated to protecting our communities," he said, adding it "strengthens our resolve to continue their mission."

From Barron's • Apr. 20, 2026

One of the few pieces of information we have about them is that at a very solemn moment the worshipers were shown “an ear of corn which had been reaped in silence.”

From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton