ambisinister

例句：

1. 1. The king was accused of being an ambisinister by his own ministers.
   国王被自己的大臣们指控为密谋者。
2. 2.He is suspected of being an ambisinister in the recent political scandal.
   他最近的政治丑闻中被怀疑是密谋者。
3. 3.The plotters were caught red-handed, and their plans were exposed as a ploy to depose the president.
   密谋者们被当场抓获，他们的计划被揭露为推翻总统的诡计。