unofficial event

[/ʌnəˈfɪʃəl ɪˈvɛnt/]
nounpl: unofficial events
evento não oficial
1. A gathering, function, or organized activity that has not been formally recognized, sanctioned, or endorsed by an official authority or organization
The conference organizers announced an unofficial event in the hotel lobby after the formal sessions ended.
Os organizadores da conferência anunciaram um evento não oficial no saguão do hotel após o término das sessões formais.
2. An activity or gathering arranged informally without official approval or registration
The fans organized an unofficial event to celebrate their team's victory.
Os fãs organizaram um evento não oficial para celebrar a vitória do seu time.
In Brazil, unofficial events are common in social and professional contexts, often referred to as 'rolês' or informal gatherings. In corporate and academic settings, they may be called 'encontros extraoficiais.' In the USA, particularly in NYC, these are often organized through social networks and may operate 'on the down low' to avoid regulatory scrutiny or simply as grassroots, community-driven activities.
NYC Slang
off-the-books thing / under-the-radar event
Synonyms / Sinônimos
informal eventunsanctioned eventunrecognized eventoff-the-books eventimpromptu gathering
Antonyms / Antônimos
official eventsanctioned eventformal eventauthorized event

Regional Variations

General Brazilian
evento não oficial
Standard usage across Brazil
Rio de Janeiro
rolê não oficial / evento informal
More colloquial; 'rolê' used for informal gatherings
São Paulo
evento não oficial / encontro extraoficial
More business-oriented language in corporate contexts
Portugal
evento não oficial / acontecimento informal
Similar usage; 'acontecimento' often preferred over 'evento'

Related Words

formal eventsanctioned gatheringunauthorized gatheringinformal meetingside eventfringe event

Related Idioms & Phrases

on the down low
under the radar
off the books
behind closed doors
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