unofficial

adjective

un·​of·​fi·​cial ˌən-ə-ˈfi-shəl How to pronounce unofficial (audio)
 also  -ō-
: not authorized or acknowledged by a government, group, class, or society : not official
unofficial results
an unofficial policy
unofficially adverb

Examples of unofficial 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.
Here’s how each quarterback performed in the limited live action, which features unofficial stats without yardage and no touchdowns or interceptions on the day. Hunter Bailey, Charlotte Observer, 20 Apr. 2025 This is not the first time Clark has served as the Indiana Fever's unofficial child wrangler. Emily Tannenbaum, Glamour, 20 Apr. 2025 Friday’s Revere tribute serves as an unofficial kickoff, tying 1775 to 2025. Jasmine Baehr, FOXNews.com, 19 Apr. 2025 That might explain why cannabis-friendly food holidays like 4/20 have become unofficial showcases for fast-food indulgence. Stephanie Gravalese, Forbes.com, 18 Apr. 2025 See All Example Sentences for unofficial

Word History

First Known Use

1784, in the meaning defined above

Time Traveler
The first known use of unofficial was in 1784

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Cite this Entry

“Unofficial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unofficial. Accessed 23 Apr. 2025.

Medical Definition

unofficial

adjective
un·​of·​fi·​cial ˌən-ə-ˈfish-əl How to pronounce unofficial (audio)
: not official
specifically : of, relating to, or being a drug not described in the United States Pharmacopeia and National Formulary compare nonofficial, official

More from Merriam-Webster on unofficial

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