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
These are the accepted, if unofficial, rules of SoCal’s spearfishing bums, a relatively small but hardcore group of sportsmen and -women who hunt the elusive fish year-round.
—
Natalie Krebs, Outdoor Life, 16 May 2024
For several years, Dec. 25 has been the unofficial start of the NBA season for casual fans where the NBA schedules a handful of games throughout the day.
—Jim Sergent, USA TODAY, 16 May 2024
See all Example Sentences for unofficial 
Natalie Krebs, Outdoor Life, 16 May 2024
For several years, Dec. 25 has been the unofficial start of the NBA season for casual fans where the NBA schedules a handful of games throughout the day.
—Jim Sergent, USA TODAY, 16 May 2024
See all Example Sentences for unofficial
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unofficial.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near unofficial
Cite this Entry
“Unofficial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unofficial. Accessed 19 May. 2024.
Copy CitationMedical 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
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