lunatic Hear it!

lunatic definition

lu·na·tic (lo̵̅o̅′nə tik)

adjective

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

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

noun

an insane person

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.