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lunatic

play
adjective lu·na·tic \ˈlü-nə-ˌtik\

Definition of lunatic

  1. 1 a :  affected with lunacy :  insane b :  designed for the care of insane persons <lunatic asylum>

  2. 2 :  wildly foolish <a lunatic idea>

lunatic noun


Examples of lunatic in a sentence

  1. He hatched a lunatic plot to overthrow the government.

  2. another of his lunatic ideas



Origin of lunatic

Middle English lunatik, from Anglo-French or Late Latin; Anglo-French lunatic, from Late Latin lunaticus, from Latin luna; from the belief that lunacy fluctuated with the phases of the moon


First Known Use: 14th century


LUNATIC Defined for Kids

1

lunatic

play
adjective lu·na·tic \ˈlü-nə-ˌtik\

Definition of lunatic for Students

  1. :  insane 1




2

lunatic

play
noun lu·na·tic

Definition of lunatic for Students

  1. 1 :  an insane person

  2. 2 :  a person who behaves very foolishly <That lunatic went through a red light.>




Medical Dictionary

lunatic

noun lu·na·tic

Medical Definition of lunatic

  1. :  an individual marked by a severely disordered state of mind




Law Dictionary

lunatic

noun lu·na·tic \ˈlü-nə-tik\

Legal Definition of lunatic

  1. :  an insane person —used especially formerly

lunatic adjective




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