Definition of unofficial in English:

unofficial

adjective

  • 1Not officially authorized or confirmed.

    ‘unofficial reports that dozens of people were injured’
    • ‘The unofficial website for Daylight Rule, has received more than 3300 visitors since it was launched.’
    • ‘The most exciting exhibition in Venice is an unsanctioned upstart: the unofficial Italian pavilion.’
    • ‘Unpopular plans to build ten family homes on unofficial allotments beside a village conservation area have been blocked.’
    • ‘So count us in for next year's challenge and let's see if we can make our, slightly unofficial, record official.’
    • ‘There were also unofficial reports of a further three scares, including one at a school in Fish Hoek.’
    • ‘The Gun Plot is the most authoritative unofficial site about the RAN on the Internet.’
    • ‘I'm sure she's flouting loads of official and unofficial tube etiquette in one fell swoop here.’
    • ‘Let's get this sorted: Shazia Mirza isn't an unofficial spokeswoman for Islam.’
    • ‘Amazingly it bears a striking resemblance to some of the unofficial tube rules I've reported in my time.’
    • ‘The neighbours in unofficial whispers talk about his activities but officially they know nothing.’
    • ‘None of the cities has an official tolerance zone, although Aberdeen has an unofficial red-light district.’
    • ‘So neither the official nor the unofficial cover story seem to hold much water.’
    • ‘Forest harvesting, official and unofficial, can create major problems.’
    • ‘Only one of the 18 official languages in India and many more unofficial ones, I replied.’
    • ‘Bernhard's lap was one of three that bettered both the official and unofficial track records.’
    • ‘They do not reflect the official or unofficial policies of any government agency.’
    • ‘There is no mileage in keeping the site as some kind of unofficial commemoration of the riots and what they meant - it is time to move on.’
    • ‘How many were killed and wounded is unknown, for unofficial and official counts differed widely.’
    • ‘The reporters did not clarify whether the news was from official or unofficial sources.’
    • ‘Yet there is the possibility of an engagement, whether official or unofficial for John Brown.’
    unauthenticated, unconfirmed, uncorroborated, unsubstantiated, unratified
    informal, casual
    View synonyms
    1. 1.1British Denoting strike action not called or endorsed by the union to which the strikers belong.

Pronunciation:

unofficial

/ˌənəˈfiSH(ə)l/