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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Saturday Night Live marked the safe return to Earth of NASA‘s Artemis II crew by imagining one astronaut’s attempt at a sober video message that gets disrupted by his very unserious colleagues. William Vaillancourt, Rolling Stone, 12 Apr. 2026 Orion still needs some fine-tuning As would be expected, this test flight turned up several issues that need to be addressed — including the unserious and the potentially detrimental. Jackie Wattles, CNN Money, 11 Apr. 2026 That reflects an unserious passivity that permeates every level of the Sky organization. Julia Poe, Chicago Tribune, 7 Apr. 2026 Outside of his political efforts, the Harvard Law alumnus is a popular social media personality known for his unserious videos. Emily Kelleher, InStyle, 6 Apr. 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 21 Apr. 2026.

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