- the act of conspiring.
- an evil, unlawful, treacherous, or surreptitious plan formulated in secret by two or more persons; plot.
- a combination of persons for a secret, unlawful, or evil purpose: He joined the conspiracy to overthrow the government.
- Law. an agreement by two or more persons to commit a crime, fraud, or other wrongful act.
- any concurrence in action; combination in bringing about a given result.
Origin of conspiracy
SynonymsSee more synonyms for on Thesaurus.com
Examples from the Web for conspiratorial
Hitchcock leans toward me in a conspiratorial, almost lascivious, way and says, “Let's pile on the menace.”Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days
December 13, 2014
This is the conspiratorial mind using skepticism as a cloak for intellectual laziness.Russell Brand’s Revolution For Morons
November 2, 2014
To add to the conspiratorial flair, they added that the DA told them not to talk to the FBI or the CIA either.The Myth of the Central Park Five
October 19, 2014
Occasionally his fluent, French-accented sentences will conclude with a conspiratorial giggle.Meet Alexandre Desplat, Hollywood’s Master Composer
February 11, 2014
The reactions from the home audience were varied, ranging from the conspiratorial “I knew it!”Was George Washington Among the Walking Dead?
January 26, 2014
She, too, gave me a conspiratorial wink and patted her handbag.Sense from Thought Divide
Mark Irvin Clifton
Retrieving my bundle, I joined Amar with conspiratorial caution.Autobiography of a YOGI
But there was a conspiratorial accent in her question for which he was unprepared.Helen with the High Hand (2nd ed.)
It had been possible to leave doubt unsettled so long as they were a small, conspiratorial group.Government in Republican China
Paul Myron Anthony Linebarger
Before the excogitation of this splendid resolve, he had been observed to wear for some period a conspiratorial aspect.Sandra Belloni, Complete
- a secret plan or agreement to carry out an illegal or harmful act, esp with political motivation; plot
- the act of making such plans in secret
Word Origin and History for conspiratorial
mid-14c., from Anglo-French conspiracie, Old French conspiracie "conspiracy, plot," from Latin conspirationem (nominative conspiratio) "agreement, union, unanimity," noun of action from conspirare (see conspire); earlier in same sense was conspiration (early 14c.), from French conspiration (13c.), from Latin conspirationem. An Old English word for it was facengecwis. As a term in law, from 1863. Conspiracy theory is from 1909.