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adj. daf·fi·er, daf·fi·est Informal
1. Silly; foolish.
2. Crazy.

[From obsolete daff, fool, from Middle English daffe; probably akin to dafte, foolish; see daft.]

daf′fi·ly adv.
daf′fi·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


adj, daffier or daffiest
informal another word for daft1, daft2
[C19: from obsolete daff fool; see daft]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈdæf i)

adj. -fi•er, -fi•est. Informal.
silly; weak-minded; crazy.
[1880–85; obsolete daff fool]
daf′fi•ly, adv.
daf′fi•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:


Informal. Afflicted with or exhibiting irrationality and mental unsoundness:
Informal: bonkers, cracked, gaga, loony.
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.
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


[ˈdæfɪ] ADJchiflado
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[ˈdæfi] adj (= daft) → bébête
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
References in classic literature ?
'Why, it's what I'm obliged to keep a little of in the house, to put into the blessed infants' Daffy, when they ain't well, Mr.
Sedley in the act of surreptitiously administering Daffy's Elixir to the infant.
"I reckon the daffy old bounder don't know no more'n we do about it," growled the rat-faced sailor.
-- The majority of a Food and Drug Administration advisory panel recommended on March 8 that the inhaled bronchodilator indacaterol should be approved for patients with chronic obstructive pulmonary disease, at a dose of 75 mcg once daffy.
The 6ft x 5ft painting of Bugs and Daffy, which is one of only three original works given to arts centres around the world, was handed over by Linda Jones ahead of a show, Bugs Bunny on Broadway, at the centre on March 23.
When Damien is kidnapped by the dastardly criminal mastermind Mr Chairman, who owns equally nefarious Acme Corporation, DJ launches a daring rescue bid and enlists help from Warner Bros Vice President of Comedy, Kate Houghton, Daffy and Bugs.
So with the novelty of seeing Bugs Bunny, Daffy Duck and their resilient brethren interact with flesh-and-bone actors relatively old hat, the story requires more giggles--and not just the odd knowing smile--than Dante and Larry Doyle (the one credited writer) deliver.
The Aussies slipped to 16 for 2 when Daffy took his second wicket, trapping Justin Langer leg before for three.
Hyslop, Bainsford, Falkirk YESTERDAY'S SOLUTIONS: OPAL SURE HEW ALBA CREW AKA TOLD UNLEADED STEIFF ARC DAFFY IONA DEBACLE DRAM EDI TEACHCAP MATS SLOGANS OMEN STILE APT MENTAL BULGARIA TODO ARE TACT LUDO DIN EPEE ERST WEETHINKER: Across: 1 Loft; 4 Slice; 7 Tribe; 8 Spear; 9 Glove; 10 Pickpocket; 14 Season; 16 Stifle; 17 Stroganoff; 22 Psalm; 23 Adder; 25 Alter; 26 Repel; 27 Myth.
* Beclomethasone twice daffy, with beclomethasone plus albuterol as rescue (combined group).
Andrew Alton and George Fletcher are the superb Bowery-boy gangsters and Krystina Murtagh is totally engaging as the happy, daffy Lois.
The idea was to guide busy people through prayer on their daffy journey to work, school or college.