Dictionary

lunatic

adjective lu·na·tic \ˈlü-nə-ˌtik\

Definition of LUNATIC

1
a :  affected with lunacy :  insane
b :  designed for the care of insane persons <lunatic asylum>
2
:  wildly foolish <a lunatic idea>
lunatic noun

Examples of LUNATIC

  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

Other Psychology Terms

fetish, hypochondria, intelligence, mania, narcissism, neurosis, pathological, psychosis, schadenfreude, subliminal
LUNATIC Defined for Kids

1lunatic

adjective lu·na·tic \ˈlü-nə-ˌtik\

Definition of LUNATIC for Kids

:  insane 1

2lunatic

noun

Definition of LUNATIC for Kids

1
:  an insane person
2
:  a person who behaves very foolishly <That lunatic went through a red light.>

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July 02, 2015
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comprehension or the fear of future evil
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