- a foolish or stupid person; blockhead.
- being of, by, or for a stupid or unthinking person: a bonehead mistake.
Origin of bonehead
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for boneheaded
Eastwood's cringe-inducing performance was more than a boneheaded move.Romney Camp Defends Eastwood
August 31, 2012
It was arguably the most boneheaded thing erstwhile presidential hopeful Rick Santorum said.Christian Movie War: Pro-Life ‘October Baby’ vs. Postmodern ‘Blue Like Jazz’
April 12, 2012
Plus, Buzz Bissinger on the Syracuse head coach's boneheaded defense of his assistant.ESPN, Local Paper Sat on Syracuse Sex-Abuse Tape for Years
November 29, 2011
It was finally discovered that some boneheaded clerk had sent it by mail—a matter of three days!A Journal From Our Legation in Belgium
- slang a stupid or obstinate person
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for boneheaded
Online Etymology Dictionary, © 2010 Douglas Harper