English version

self-appointed

From Longman Dictionary of Contemporary Englishself-appointedˌself-apˈpointed adjective  THINK/HAVE THE OPINION THATgiving yourself a responsibility, job, position etc without the agreement of other people, especially those you claim to represent – used to show disapproval
Examples from the Corpus
self-appointedVigilantes were the self-appointed administrators of justice and public executioners.These self-appointed assistants sped swiftly up and down the corridor, wakening their companions and spreading the good news.Fifthly, the periodic meetings of Great Powers which together acted as self-appointed guarantors of international law and order.We won't be intimidated by self-appointed guardians of educational standards.He was our self-appointed guide to Bouilland, population 136, sixteen kilometres from Beaune.He is also the self-appointed heckler-in-chief to the Tories.Because he was literate and articulate, he showed a bitter contempt for the self-appointed intellectuals of the inter-war years.For years now, self-appointed surgeons without the appropriate training have been performing life-threatening operations usurping the skills of consultant plastic surgeons.
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