Psychology The state or condition of being an idiot; profound mental retardation.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "idiocy" in a sentence
"Dobbs defending the incredibly stupid birther idiocy is the topic."
"All of this idiocy is a major reason why I moved out of the state in June."
"But that, of course, you term idiocy -- and maybe it is."