unofficial
Britishadjective
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not official or formal
an unofficial engagement
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not confirmed officially
an unofficial report
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(of a strike) not approved by the strikers' trade union
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(of a medicinal drug) not listed in a pharmacopoeia
Other Word Forms
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.
Like most countries, neither recognises Taiwan's claim to statehood but both maintain close unofficial relations with the island.
From Barron's • Jun. 18, 2026
In two months, he went from polling at 5% in a March IGS poll to 25% in a late May poll and finishing first in the unofficial primary vote count.
From Los Angeles Times • Jun. 11, 2026
Such unofficial guidelines govern all kinds of white-collar offices, but nowhere do they carry more weight than on Wall Street.
From The Wall Street Journal • Jun. 5, 2026
It makes Nana happy to see so many Mexican-inspired restaurants in the mainstream, which not only satisfy our shared palettes but also serve as unofficial ambassadors of the good of Mexico.
From Salon • Jun. 3, 2026
Dennis Rodman travels to North Korea as an unofficial ambassador on a mission of peace but is taken into custody the moment he disembarks from the plane.
From "We Are the Ants" by Shaun David Hutchinson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
