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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.


silliness; craziness
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
For too much of "Mascots," the deadpan daffiness never rises to a heightened level of surprise.
Forget about playing shadowy, Nixonian dirty tricks on one's political opponents, this POTUS race is shaping up to be all about the public trolling--with bonus points awarded for daffiness.
So when Lippy Leo was apprised of his appointing to succeed 'Boiling Body' Grimes (and most baseball people will tell you this was long before Larry MacPhail was willing to admit it to the general public) the Babe knew he and the daffiness boys were parting company." (48)
Billy's face was in a gleeful Leave-It-to-Beaver of daffiness, and Michael's dumbfounded expression--worn to distract her--was put out by a nervous scratch of his neck.
To take the law student's word about her "fluffiness or daffiness or intellectual flaccidity or a somehow smug-seeming naivete" (289), then, is both to accept his limitations as our own and to deny the woman's anecdote as a meaningful verbal performance even before it is experienced or interpreted as epiphanic by a man.
Aboard the ship were the "Daffiness Boys," laughingstocks of the National League.