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[id-ee-uh-see] /ˈɪd i ə si/
noun, plural idiocies.
utterly senseless or foolish behavior; a stupid or foolish act, statement, etc.:
All this talk of zombies coming to attack us is pure idiocy.
Psychology. (no longer in technical use; considered offensive) the state of being an idiot.
Origin of idiocy
1520-30; idio(t) + -cy; compare Greek idiōteía uncouthness
1. foolishness, inanity, folly. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for idiocy
  • Part of being a professor is fighting against the idiocy that surrounds us every day.
  • In fact, both ideologies are flawed to the point of single-minded idiocy.
  • Why you do not understand this is a testament your idiocy.
  • There may be a touch of validity to the frustrating helplessness of the couple faced by all of this murderous idiocy.
  • But good systems are designed for idiots and help idiots be successful despite their idiocy.
  • But others view a doctor's willingness to film his work as a sign of idiocy.
  • It's a sure sign of dangerous authoritarian idiocy at the core.
  • It is not complicated no matter how many times your repeat your idiocy.
  • But there is a limit to how much charm, and how many laughs, he can wring out of deadpan idiocy.
  • And choosing to turn your back on its wonders is the height of idiocy.
British Dictionary definitions for idiocy


noun (pl) -cies
(not in technical usage) severe mental retardation
foolishness or senselessness; stupidity
a foolish act or remark
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
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Word Origin and History for idiocy

1520s, from idiot on model of prophecy, etc. Early alternatives included idiotacy (1580s), idiotry (1590s).

Online Etymology Dictionary, © 2010 Douglas Harper
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idiocy in Medicine

idiocy id·i·o·cy (ĭd'ē-ə-sē)
The state or condition of being an idiot; profound mental retardation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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