- a theory that explains an event as being the result of a plot by a covert group or organization; a belief that a particular unexplained event was caused by such a group.
- the idea that many important political events or economic and social trends are the products of secret plots that are largely unknown to the general public.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for conspiracy theory
To complicate matters further, the only people who seemed to have any desire to go after Booker were of the conspiracy-theory ilk.The Ugly Truth About Cory Booker, New Jersey’s Golden Boy
October 20, 2014
- the belief that the government or a covert organization is responsible for an event that is unusual or unexplained, esp when any such involvement is denied
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