Definition of unofficial in English:

unofficial

adjective

  • 1Not officially authorized or confirmed.

    ‘unofficial reports said that dozens of people were injured’
    • ‘There were also unofficial reports of a further three scares, including one at a school in Fish Hoek.’
    • ‘So count us in for next year's challenge and let's see if we can make our, slightly unofficial, record official.’
    • ‘They do not reflect the official or unofficial policies of any government agency.’
    • ‘The Gun Plot is the most authoritative unofficial site about the RAN on the Internet.’
    • ‘None of the cities has an official tolerance zone, although Aberdeen has an unofficial red-light district.’
    • ‘Forest harvesting, official and unofficial, can create major problems.’
    • ‘Let's get this sorted: Shazia Mirza isn't an unofficial spokeswoman for Islam.’
    • ‘So neither the official nor the unofficial cover story seem to hold much water.’
    • ‘The neighbours in unofficial whispers talk about his activities but officially they know nothing.’
    • ‘I'm sure she's flouting loads of official and unofficial tube etiquette in one fell swoop here.’
    • ‘Bernhard's lap was one of three that bettered both the official and unofficial track records.’
    • ‘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.’
    • ‘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.’
    • ‘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 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.’
    • ‘Only one of the 18 official languages in India and many more unofficial ones, I replied.’
    • ‘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.
      • ‘Last year the sacking of a union rep at the hospital sparked an unofficial walkout by porters.’
      • ‘Thousands of workers in the shipyards along the River Tyne took part in unofficial strike action in support of sacked workmates.’
      • ‘Mr Hayes said in a letter to his members that the Royal Mail had accepted that the CWU did not instigate unofficial action.’
      • ‘The post workers' victorious unofficial strike is a major breakthrough.’
      • ‘Lots of people are frightened because it's an unofficial strike and management can sack you.’
      • ‘Trade and industry secretary Patricia Hewitt attacked the unofficial strikes.’
      • ‘They have also organised an unofficial strike against the increase in work intensity in the Kia Motor plant.’
      • ‘We've shown that through official and unofficial action earlier this year.’
      • ‘They followed unofficial strikes in Glasgow and Essex the week before.’
      • ‘The strikes were unofficial and might have been deemed illegal.’
      • ‘The threat of losing the union machine has curbed the best union leaders' confidence to support unofficial strikes.’
      • ‘We've just had the most awesome two-day unofficial strike, which totally shook management.’
      • ‘The Pentonville Five were freed after a huge wave of unofficial strikes.’
      • ‘A postal worker was cheered and applauded when he told the meeting how the unofficial strike in the post had driven bosses back.’
      • ‘There was some discussion about the relationship between official and unofficial action.’
      • ‘OVER 2,000 Glasgow postal workers walked out on unofficial strike last week in a dispute over jobs.’
      • ‘The trade unions in Ferenka even called off an unofficial strike in support of Dr. Herrema.’
      • ‘There were unofficial strikes involving up to 250,000 workers, demonstrations and mass pickets.’
      • ‘As reported last month, the unofficial action involves firefighters across London refusing to act up as officers.’
      • ‘Postal workers were on the brink of strike ballots or even unofficial walkouts as Socialist Worker went to press.’

Pronunciation

unofficial

/ʌnəˈfɪʃ(ə)l/