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Synonyms

unofficial

British  
/ ˌʌnəˈfɪʃəl /

adjective

  1. not official or formal

    an unofficial engagement

  2. not confirmed officially

    an unofficial report

  3. (of a strike) not approved by the strikers' trade union

  4. (of a medicinal drug) not listed in a pharmacopoeia

"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

Other Word Forms

  • unofficially adverb

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.

I met Molly Hansen, the community’s unofficial historian and naturalist, in her low-ceilinged office near the village center.

From Los Angeles Times

Daily temperature records were broken at LAX and UCLA, she said, where unofficial highs on Wednesday were 88 and 87 degrees, respectively.

From Los Angeles Times

Economy watchers are once again turning to a patchwork of unofficial data as another federal spending impasse has suspended government figures.

From The Wall Street Journal

This marching song was first published in the Atlantic Monthly in February 1862, and was the unofficial anthem of the Union Army, set to the tune of the also-popular song, “John Brown’s Body.”

From The Wall Street Journal

Austin was offered a scholarship on Saturday after an unofficial visit to Westwood.

From Los Angeles Times