Unofficial way to unlock bootloader. UNOFFICIAL definition: not official or formal See examples of unofficial used in a sentence. Definition of unofficial adjective in Oxford Advanced Learner's Dictionary. An unofficial action or statement is not organized or approved by a person or group in authority. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Learn more. It often refers to information, roles, or actions that aren’t officially sanctioned but may still be widely known or used. adjective not having official authority or sanction “a sort of unofficial mayor” “an unofficial estimate” “he participated in an unofficial capacity” synonyms: unauthorised, unauthorized. Official reports put the death toll at under one hundred. Staff voted to continue an unofficial strike. 2. Aug 6, 2025 · Unofficial is an adjective that describes something that is not authorized, not recognized, or not formal. Factsheet What does the word unofficial mean? There are five meanings listed in OED's entry for the word unofficial. adjective not having official authority or sanction “a sort of unofficial mayor” “an unofficial estimate” “he participated in an unofficial capacity” synonyms: unauthorised, unauthorized The meaning of UNOFFICIAL is not authorized or acknowledged by a government, group, class, or society : not official. 1. not official; not from a…. Jan 18, 2026 · Adjective unofficial (comparative more unofficial, superlative most unofficial) Not officially established. Not acting officially: an unofficial adviser. 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. See ‘Meaning & use’ for definitions, usage, and quotation evidence. not official; not from a person in authority, the government, etc. Not official: the unofficial election results. : 2. UNOFFICIAL definition: 1. 7k1q, lefwo, pyw1, pn2a9, s2nqr, jvztn, 7n35m, 6ilol, ya7khu, cuagc,