The meaning of UNOFFICIAL is not authorized or acknowledged by a government, group, class, or society : not official.
How to use unofficial in a sentence.
UNOFFICIAL definition: 1.
not official; not from a person in authority, the government, etc.: 2.
not official; not from a..
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Definition of unofficial adjective in Oxford Advanced Learner's Dictionary.
Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
UNOFFICIAL definition: not official or formal See examples of unofficial used in a sentence.
Jan 18, 2026 · Implicitly true but withheld and/or contradicted by authority.
The unofficial reason for invading the nation, however, was to control their resources.
Not acting with official authority.
1.
Not official: the unofficial election results.
2.
Not acting officially: an unofficial adviser.
An unofficial action is not authorized, approved, or organized by a person in authority.
Factsheet What does the word unofficial mean?
There are five meanings listed in OED's entry for the word unofficial.
See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Unofficial refers to something that is not formally acknowledged, authorized, or accepted by a person, institution, or governing body.
It can relate to rules, actions, statements, events, roles, or positions.
adjective not having official authority or sanction “a sort of unofficial mayor” “an unofficial estimate” “he participated in an unofficial capacity” synonyms: unauthorised, unauthorized
