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…. Learn more.

UNOFFICIAL definition: not official or formal See examples of unofficial used in a sentence.

Definition of unofficial adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Jan 18, 2026 · Adjective unofficial (comparative more unofficial, superlative most unofficial) Not officially established.

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.

Unofficial definition: Not official.

unofficial - WordReference English dictionary, questions, discussion and forums. All Free.

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 …