lunatic

The definition of a lunatic is a person who is either actually crazy or who is acting crazy and wild in his behavior.

(noun)

  1. A crazy person is an example of a lunatic.
  2. A person who behaves in a really wild and bizarre manner is an example of a lunatic.

Lunatic is defined as someone or something that is wild, crazy or absurd.

(adjective)

Wild and crazy behavior is an example of something that would be described as lunatic behavior.

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See lunatic in Webster's New World College Dictionary

adjective

  1. suffering from lunacy; insane
  2. of or characterized by lunacy
  3. of or for insane persons
  4. utterly foolish

Origin: ME lunatik < OFr lunatique < LL lunaticus, moon-struck, crazy < L luna, the moon: see light

noun

an insane person

See lunatic in American Heritage Dictionary 4

adjective
  1. Suffering from lunacy; insane.
  2. Of or for the insane.
  3. Wildly or giddily foolish: a lunatic decision.
  4. Characterized by lunacy or eccentricity.

Origin:

Origin: Middle English lunatik

Origin: , from Old French lunatique

Origin: , from Latin lūnāticus

Origin: , from lūna, moon; see leuk- in Indo-European roots

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Related Forms:

  • luˈna·tic noun

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