unserious

adjective

un·​se·​ri·​ous ˌən-ˈsir-ē-əs How to pronounce unserious (audio)
Synonyms of unseriousnext
: not serious
unserious writers
unserious debates
… recognize the difference between serious and unserious warnings.Meg Greenfield
unseriously adverb
talking unseriously
unseriousness noun

Examples of unserious in a Sentence

Recent Examples on the Web
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The White House responded with a counterproposal Wednesday night, which Democrats dismissed as unserious. Riley Beggin, Arkansas Online, 14 Feb. 2026 The White House responded to demands from Democrats on their 10-point plan to reform immigration enforcement, but Democrats are dismissing it as unserious. Jared Gans, The Hill, 11 Feb. 2026 This year’s sophomore class was dismissed time and time again as unserious or incapable difference-makers over the previous season. Zach Harper, New York Times, 27 Jan. 2026 The duo’s sense of humor shines through, highlighting how unserious contemporary hip-hop culture can be when displaced from its original context. Rae-Aila Crumble, Pitchfork, 26 Jan. 2026 See All Example Sentences for unserious

Word History

First Known Use

1655, in the meaning defined above

Time Traveler
The first known use of unserious was in 1655

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Cite this Entry

“Unserious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unserious. Accessed 25 Feb. 2026.

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