Definitions

1. adjective

extremely subtle or delicate in nature, effect, or degree

“The subtlest nuances of the artist’s brushstrokes brought the painting to life.”

2. noun

the most subtle or delicate

“The subtlest of whispers can be heard from across the room.”

3. adverb

in a subtle or delicate manner

“The new policy was implemented in the subtlest way possible to avoid alarm.”