Meaning of subtlest

1. She noticed the subtlest change in his tone of voice.
2. The artist added the subtlest hint of blue to the background of the painting.
3. The perfume had the subtlest scent of lavender.
4. His humor was always the subtlest, leaving people unsure if he was joking or serious.
5. The chef's use of herbs added the subtlest flavor to the dish.
6. The actress conveyed emotion through the subtlest movements of her eyes.
7. The novel's plot twists were so subtle that only the subtlest readers were able to catch them.
8. The music had the subtlest rhythm, making it perfect for relaxation.
9. His critique of her work was filled with the subtlest compliments and criticisms.
10. The sunset painted the sky with the subtlest shades of pink and orange.