unofficial

adjective

un·​of·​fi·​cial ˌən-ə-ˈfi-shəl 

 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

Topline The moon is expected to be near its closest point to Earth tonight, resulting in the largest supermoon this year, according to experts, an unofficial astronomical phenomenon that occurs up to four times annually. —Ty Roush, Forbes, 16 Oct. 2024

Community was the unofficial theme of the 2024 Black Love Summit held in Los Angeles on Saturday, October 12, as a series of celebrity-laden panels emphasized the beauty and support that can be found within our least romantic connections. —Brande Victorian, Essence, 15 Oct. 2024

In the first place, the Dominions have now become virtually… The British Commonwealth and the Future The proceedings of the second unofficial conference on British Commonwealth relations, held at Sydney (Australia) September 3-17, 1938. —H. V. Hodson, Foreign Affairs, 15 Oct. 2024

As President Joe Biden toured the damage from Hurricane Milton on Sunday, the unofficial death toll rose to more than twenty, and more than a million Floridians were reported to be without power. —John Cassidy, The New Yorker, 14 Oct. 2024

Word History

First Known Use

1784, in the meaning defined above

Medical Definition

unofficial

adjective

un·​of·​fi·​cial ˌən-ə-ˈfish-əl 

: not official

specifically : of, relating to, or being a drug not described in the United States Pharmacopeia and National Formulary compare nonofficial, official