subtly

/ˈsʌtəli/
adverb
  1. In a way that is not obvious or easy to notice; delicately or indirectly.
    • The flavor of the soup was subtly enhanced by a pinch of cinnamon.
    • She subtly hinted that she wanted to leave the party early.
    • The artist subtly changed the color of the sky in each painting.
  2. In a clever or skillful way that is not direct or forceful.
    • He subtly convinced his coworkers to adopt his plan without them realizing it.
    • The designer subtly incorporated the company logo into the pattern.
    • The comedian subtly mocked the politician's speech patterns.