• WordNet 3.6
    • adj lunatic insane and believed to be affected by the phases of the moon
    • n lunatic a reckless impetuous irresponsible person
    • n lunatic an insane person
    • ***
Webster's Revised Unabridged Dictionary
    • n Lunatic A person affected by lunacy; an insane person, esp. one who has lucid intervals; a madman; a person of unsound mind. "The lunatic , the lover, and the poet,
      Are of imagination all compact."
    • Lunatic Affected by lunacy; insane; mad; crazy; demented. "Lord, have mercy on my son; for he is lunatic ."
    • Lunatic Of or pertaining to, or suitable for, an insane person; evincing lunacy; as, lunatic gibberish; a lunatic asylum.
    • ***
Century Dictionary and Cyclopedia
    • lunatic Moonstruck; affected by lunacy; periodically insane, with lucid intervals; crazy.
    • lunatic Indicating lunacy; in the nature of lunacy.
    • lunatic Of or like the moon.
    • n lunatic A person affected with lunacy; specifically, an insane person who has lucid intervals, or one whose unsoundness of mind is acquired, not congenital, as distinguished from an idiot.
    • n lunatic More generally (and in law), any person of unsound mind. See further under lunacy and insanity.
    • n lunatic Synonyms See insanity.
    • ***
Chambers's Twentieth Century Dictionary
    • Lunatic affected with lunacy
    • ***


  • Virginia Woolf
    “Those comfortably padded lunatic asylums which are known, euphemistically, as the stately homes of England.”
  • Source Unknown
    Source Unknown
    “There are two enemies to every bill proposed in Congress, the fools who favor it and the lunatics who oppose it.”
  • H. L. Mencken
    “The lunatic fringe wags the underdog.”
  • Victor Serge
    Victor Serge
    “I followed his argument with the blank uneasiness which one might feel in the presence of a logical lunatic.”
  • George Orwell
    “What can you do against the lunatic who is more intelligent than yourself, who gives your arguments a fair hearing and then simply persists in his lunacy?”
  • Ezra Pound
    “I guess the definition of a lunatic is a man surrounded by them.”


Webster's Revised Unabridged Dictionary
F. lunatique, L. lunaticus, fr. luna, the moon. See Lunar
Chambers's Twentieth Century Dictionary
L. lunarisluna, the moon—lucēre, to shine.


In literature:

Would any one but a lunatic go risking his crew and his vessel like that?
"The Ocean Cat's Paw" by George Manville Fenn
Moreover, he was well aware that Norwood was the asylum to which the more dangerous of lunatics were transferred.
"The Angel of Terror" by Edgar Wallace
The fellow is a lunatic; his plan will never do!
"Punch, or the London Charivari, Volume 98, January 18, 1890" by Various
The porter believed that a lunatic stood before him.
"The Ape, the Idiot & Other People" by W. C. Morrow
They are not lunatics.
"The Battery and the Boiler" by R.M. Ballantyne
But who can sound the abysses of a lunatic's fancy?
"The Woman in Black" by Edmund Clerihew Bentley
Heart o' Dreams Camp is in danger as long as that lunatic runs loose.
"Blacksheep! Blacksheep!" by Meredith Nicholson
There are at present three poets, one lunatic, an epileptic, four workingmen and a scientist from Vienna, and two school teachers.
"Erik Dorn" by Ben Hecht
I cannot even make a living for myself, lunatic!
"Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 24, March, 1873" by Various
Why not quarantine lunatics?
"The Confessions of a Caricaturist, Vol 2 (of 2)" by Harry Furniss

In poetry:

God damn it, father-doctor,
I'm really thirty-six.
I see dead rats in the toilet.
I'm one of the lunatics.
"Cripples And Other Stories" by Anne Sexton
But since I laid a hand thereon
And found a heart of stone
I have attempted many things
And not a thing is done,
For every hand is lunatic
That travels on the moon.
"A Man Young And Old: I. First Love" by William Butler Yeats
Try—try—try—try—to think o' something different —
Oh—my—God—keep—me from goin' lunatic!
(Boots—boots—boots—boots—movin' up an' down again!)
There's no discharge in the war!
"Boots" by Rudyard Kipling
The bellows hissed, and the old smell
Crept on the air of smoking peat,
And round the spark a bubbling flame
Grew bright and loud. Sweeping the gloom
Lunatic shadows fled and came
Whirling about the room.
"Lighting The Fire" by John Freeman
Alas! strong drink makes men and women fanatics,
And helps to fill our prisons and lunatics;
And if there was no strong drink such cases wouldn't be,
Which would be a very glad sight for all christians to see.
"The Demon Drink" by William Topaz McGonagall
The idiot bird leaps out and drunken leans
Atop the broken universal clock:
The hour is crowed in lunatic thirteens.
Out painted stages fall apart by scenes
While all the actors halt in mortal shock:
The idiot bird leaps out and drunken leans.
"Doomsday" by Sylvia Plath

In news:

The lunatics are in charge.
"The lunatics have taken over the asylum.".
Savile was 'a lunatic in charge of the asylum'.
' Lunatic farmer' and author Joel Salatin comes to Kalamazoo.
Scott McNutt's Snark Bites: State aims to tout lunatic fringe in extreme political tourism effort.
How to avoid ' lunatic ' fiscal cliff.
'True Blood' Recap: The Lunatic Takes Over the Asylum.
SEC Uncovers New Lunatic or Is That Lunar-tic Fringe on Wall Street.
Elliot Street Lunatic @ The Loft.
Elliot Street Lunatic released their sophomore album, Ghost Town Lullabies in late January.
Concerts announced Monday include Steve Winwood, Merle Haggard, Lunatic Luau.
Email shows White House official called Fox News host a " lunatic ".
The President and the Lunatic .
The US House passed a bill Wednesday to do away with the word "lunatic" in federal law with a sole congressman voting against the measure, insisting in Washington the word still has an application.
Like being trapped in an elevator with half-soused lunatics.

In science:

Given the limitations of efficient observing over two or three lunations each year, three fields were chosen covering 6 hours in RA.
Galaxy And Mass Assembly (GAMA): The input catalogue and star-galaxy separation
MegaPrime shares the rest of the lunation with other instruments. A “run” covers at least a 14 days period around the new Moon.
Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys
Stability of the photometric flat-field corrections Twilight flat-fields are assembled independently for each run of MegaCam (every lunation).
Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys
Such features normally contribute a small extra noise that averages out on several lunations.
Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys
The vertical gray dotted lines indicate the separation between different MegaCam runs (roughly one run per lunation).
Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys