<p><strong>Adjective</strong></p><ul><li>relating to or being a conspiracy, a secretive plan that is unlawful, harmful, or evil:<ul><li>Example: They believe these rulings to be the result of a conspiratorial plot cooked up by big business interests.</li></ul></li><li>suggesting or giving the impression of such a plan:<ul><li>Example: The memory I have of that night is of wicked giggles and conspiratorial whispering about Tim with my best friend Gillian.</li></ul></li></ul>