Date: 1200-1300
Language: Old French
Origin: lunatique, from Late Latin lunaticus, from Latin luna ( LUNAR); because people thought mental illness was caused by the moon


lu‧na‧tic [countable]
1 someone who behaves in a crazy or very stupid way - often used humorously:
This hotel is run by a lunatic!
2 old-fashioned a very offensive word for someone who is mentally ill:
a dangerous lunatic

the lunatic fringe

British EnglishPPG the small group of people in a political group or organization who have the most extreme opinions or ideas
lunatic adjective [only before noun]
lunatic behaviour

Dictionary results for "lunatic"
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