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Synonyms

conspiratorial

American  
[kuhn-spir-uh-tawr-ee-uhl] / kənˌspɪr əˈtɔr i əl /
Sometimes conspiratory

adjective

  1. relating to or being a conspiracy, a secretive plan that is unlawful, harmful, or evil.

    They believe these rulings to be the result of a conspiratorial plot cooked up by big business interests.

  2. suggesting or giving the impression of such a plan.

    The memory I have of that night is of wicked giggles and conspiratorial whispering about Tim with my best friend Gillian.


Other Word Forms

  • conspiratorially adverb
  • nonconspiratorial adjective

Etymology

Origin of conspiratorial

conspiratory + -al 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And this is always … again, I come back to the conspiratorial point because I do think that that is a form of conspiracy theory.

From The Wall Street Journal • Feb. 5, 2026

At the clinic, appointments with Marrero could be strangely conspiratorial, patients said.

From BBC • Jan. 10, 2026

Then he smiled, this conspiratorial grown-up smile that made the backstage fluorescents feel warmer.

From Salon • Nov. 23, 2025

“What we’re seeing with this phenomenon is that people with either conspiratorial or grandiose delusional thinking get reinforced.”

From Los Angeles Times • Nov. 21, 2025

Believers developed conspiratorial theories to explain the mysterious relationship between mediums and spirits.

From "American Spirits" by Barb Rosenstock