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or loon·ey also lun·y (lo͞o′nē)Informal
adj. loon·i·er, loon·i·est also lun·i·er or lun·i·est
1. Extremely foolish or silly.
2. Mentally deranged; crazy.
n. pl. loon·ies or loon·eys also lun·ies
A foolish or crazy person.

[Shortening and alteration of lunatic, or from loon.]

loon′i·ly adv.
loon′i·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.looney - someone deranged and possibly dangerouslooney - someone deranged and possibly dangerous
colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
lunatic, madman, maniac - an insane person


or looney
also luny
2. Informal. Afflicted with or exhibiting irrationality and mental unsoundness:
Informal: bonkers, cracked, daffy, gaga.
Chiefly British: crackers.
Idioms: around the bend, crazy as a loon, mad as a hatter, not all there, nutty as a fruitcake, off one's head, off one's rocker, of unsound mind, out of one's mind, sick in the head, stark raving mad.
Informal. A person regarded as strange, eccentric, or crazy:
Informal: crank, loon.
References in classic literature ?
They call 'im the Looney Fishmonger in the Comp'ny, sir.
Looney has been elected by the companys Board of Directors to serve as Executive Vice President and Chief Financial Officer effective March 1, 2018.
On a wider and longer-term basis, lower oil prices have been welcome, Bernard Looney, Chief executive, Upstream at BP said during the International Petroleum Week in London.
Dennis Looney, Freedom Readers: The African American Reception of Dante Alighieri and the Divine Comedy, University of Notre Dame Press: Notre Dame, IN, 2011; 280 pp.
LABOUR Councillors have called on Dermot Looney to step down as Mayor of Dublin.
Looney has been appointed as chief financial officer of PartyLite, its direct seller of candles and accessories.
Meaghan Looney, of Boylston, a Merrimack College student, earned a role in the upcoming performance of the comedy rock-musical "Little Shop of Horrors'' at the Rogers Center for the Arts on the Merrimack College campus.
Dennis Looney believes that Dante's life, especially his exile from Florence, and his Inferno in particular, have given black Americans a European example from which they have drawn encouragement and literary inspiration.
The idea that Hamlet, A Midsummer Night's Dream and the rest were actually written by the Earl of Oxford is the legacy of a Gateshead teacher called John Thomas Looney.
If you google George Looney, you'll be asked if you meant to google George Clooney.
Since President obama has come into office, there are numerous changes to employment law that will have significant impact on organizations--FMLA, Americans with Disability Act, Cobra, Fair Pay, to name a few," said Texas Credit Union League's Credit Union Employment Resources Human Resources Vice President Susan Looney.