unofficial

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.

Allbirds wasn’t just the unofficial footwear provider of Silicon Valley—its initial public offering in 2021 tapped into the tech sector’s ethos by giving the company’s founders disproportionate sway in how it would be run.

From The Wall Street Journal • Apr. 6, 2026

When it started to hit $100 billion in market cap, there were a few unofficial market-cap walls.

From Barron's • Mar. 27, 2026

McEvoy's time was faster than the unofficial 20.89 that Enhanced Games swimmer Kristian Gkolomeev claimed last year at a trial in the United States - for which he received $1m.

From BBC • Mar. 25, 2026

For many fans, Major League Baseball’s opening day is somewhat of an unofficial holiday.

From Los Angeles Times • Mar. 25, 2026

More broadly, he became the unofficial curator of cyclotron history and an assiduous chronicler of the spread of the technology, keeping Ernest supplied with frequent reports from the field.

From "Big Science" by Michael Hiltzik