conspiratorial

/kənˌspɪrəˈtɔriəl/
adjective
  1. Relating to or suggesting a secret plan made by a group of people to do something harmful or illegal.
    • The two friends exchanged conspiratorial whispers about the surprise party.
    • Her conspiratorial tone made me think she knew something the rest of us didn't.
    • He gave her a conspiratorial wink as they sneaked out of the meeting.
  2. Believing in or suggesting that secret groups control events, often in an unreasonable way.
    • His conspiratorial views about the government made it hard to have a normal conversation.
    • The article was full of conspiratorial theories about the moon landing.
    • She dismissed the rumor as just another conspiratorial fantasy.
Antonyms
What does "conspiratorial" mean? | whatsthatwordmean | whatsthatwordmean