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unserious

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adjective un·se·ri·ous \ ˌən-ˈsir-ē-əs \

Definition of unserious

:not serious
  • unserious writers
  • unserious debates
  • … recognize the difference between serious and unserious warnings.
  • —Meg Greenfield
—

unseriously

adverb
    • talking unseriously
—

unseriousness

noun

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First Known Use of unserious

1655

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