conspirational

/kənˌspɪrəˈeɪʃənəl/
adjective
  1. Relating to or involving a secret plan made by a group of people to do something harmful or illegal.
    • She found his conspirational whispers at the party unsettling.
    • The novel's conspirational tone made it a thrilling read.
    • The movie had a conspirational plot that kept the audience guessing.
What does "conspirational" mean? | whatsthatwordmean | whatsthatwordmean