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

It does, however, mean that for a history of unofficial thinking or of events not officially recognized, one needs to look elsewhere.

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.

Learn the definition of 'unofficial'. Check out the pronunciation, synonyms and grammar. Browse the use examples 'unofficial' in the great English corpus.

adjective not having official authority or sanction “a sort of unofficial mayor” “an unofficial estimate” “he participated in an unofficial capacity” synonyms: unauthorised, unauthorized

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.

An unofficial action or statement is not organized or approved by a person or group in authority. Staff voted to continue an unofficial strike. Official reports put the death toll at under one hundred.