The meaning of unofficial is not authorized or acknowledged by a government, group, class, or society : How to use unofficial in a sentence. Not official or formal see examples of unofficial used in a sentence.
Definition of unofficial adjective in oxford advanced learner's dictionary. Jan 18, 2026adjective unofficial (comparative more unofficial, superlative most unofficial) not officially established. Factsheet what does the word unofficial mean?
There are five meanings listed in oed's entry for the word unofficial. An unofficial action or statement is not organized or approved by a person or group in authority. Staff voted to continue an unofficial strike.
Use 'unofficial' when referring to something not formally acknowledged or authorized by a recognized authority. Adjective not having official authority or sanction “a sort of unofficial mayor” “an unofficial estimate” “he participated in an unofficial capacity” synonyms:
