Definition of unofficial in English:

unofficial

adjective

  • 1Not officially authorized or confirmed:

    ‘unofficial reports said that dozens of people were injured’
    • ‘I'm sure she's flouting loads of official and unofficial tube etiquette in one fell swoop here.’
    • ‘Yet there is the possibility of an engagement, whether official or unofficial for John Brown.’
    • ‘Forest harvesting, official and unofficial, can create major problems.’
    • ‘Let's get this sorted: Shazia Mirza isn't an unofficial spokeswoman for Islam.’
    • ‘There were also unofficial reports of a further three scares, including one at a school in Fish Hoek.’
    • ‘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.’
    • ‘None of the cities has an official tolerance zone, although Aberdeen has an unofficial red-light district.’
    • ‘The unofficial website for Daylight Rule, has received more than 3300 visitors since it was launched.’
    • ‘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.’
    • ‘So count us in for next year's challenge and let's see if we can make our, slightly unofficial, record official.’
    • ‘The most exciting exhibition in Venice is an unsanctioned upstart: the unofficial Italian pavilion.’
    • ‘They do not reflect the official or unofficial policies of any government agency.’
    • ‘Unpopular plans to build ten family homes on unofficial allotments beside a village conservation area have been blocked.’
    • ‘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.’
    • ‘The Gun Plot is the most authoritative unofficial site about the RAN on the Internet.’
    • ‘So neither the official nor the unofficial cover story seem to hold much water.’
    • ‘The reporters did not clarify whether the news was from official or unofficial sources.’
    • ‘How many were killed and wounded is unknown, for unofficial and official counts differed widely.’
    informal, casual
    unauthenticated, unconfirmed, uncorroborated, unsubstantiated, unratified
    View synonyms
    1. 1.1British Denoting strike action not called or endorsed by the union to which the strikers belong.
      • ‘A postal worker was cheered and applauded when he told the meeting how the unofficial strike in the post had driven bosses back.’
      • ‘OVER 2,000 Glasgow postal workers walked out on unofficial strike last week in a dispute over jobs.’
      • ‘Lots of people are frightened because it's an unofficial strike and management can sack you.’
      • ‘The post workers' victorious unofficial strike is a major breakthrough.’
      • ‘There was some discussion about the relationship between official and unofficial action.’
      • ‘The Pentonville Five were freed after a huge wave of unofficial strikes.’
      • ‘We've shown that through official and unofficial action earlier this year.’
      • ‘There were unofficial strikes involving up to 250,000 workers, demonstrations and mass pickets.’
      • ‘They have also organised an unofficial strike against the increase in work intensity in the Kia Motor plant.’
      • ‘Last year the sacking of a union rep at the hospital sparked an unofficial walkout by porters.’
      • ‘The strikes were unofficial and might have been deemed illegal.’
      • ‘They followed unofficial strikes in Glasgow and Essex the week before.’
      • ‘As reported last month, the unofficial action involves firefighters across London refusing to act up as officers.’
      • ‘Trade and industry secretary Patricia Hewitt attacked the unofficial strikes.’
      • ‘The threat of losing the union machine has curbed the best union leaders' confidence to support unofficial strikes.’
      • ‘Postal workers were on the brink of strike ballots or even unofficial walkouts as Socialist Worker went to press.’
      • ‘Mr Hayes said in a letter to his members that the Royal Mail had accepted that the CWU did not instigate unofficial action.’
      • ‘The trade unions in Ferenka even called off an unofficial strike in support of Dr. Herrema.’
      • ‘Thousands of workers in the shipyards along the River Tyne took part in unofficial strike action in support of sacked workmates.’
      • ‘We've just had the most awesome two-day unofficial strike, which totally shook management.’

Pronunciation:

unofficial

/ʌnəˈfɪʃ(ə)l/