English version

lunatic

From Longman Dictionary of Contemporary Englishlunaticlu‧na‧tic /ˈluːnətɪk/ noun [countable] 🔊 🔊 1 CRAZYsomeone who behaves in a crazy or very stupid way – often used humorously 🔊 This hotel is run by a lunatic!2 old-fashionedMENTALLY ILL a very offensive word for someone who is mentally ill 🔊 a dangerous lunatic3 the lunatic fringelunatic adjective [only before noun] 🔊 lunatic behaviour
Examples from the Corpus
lunaticThe boy and girl probably thought he was a lunatic.Some lunatic came into the store and shot him.
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