Here are some ways "subtilidad" can be used in English:
* Refinedness: This refers to the delicacy or sophistication of something, like "The subtilidad of her taste in music impressed me."
* Subtlety of Perception: This relates to being able to grasp nuances or details that are not immediately obvious, like "She noticed the subtilidad in his facial expression, indicating his displeasure."
* Skillful Technique: This can refer to a clever or artful way of doing something, like "The chef's subtilidad in creating flavors was evident in every dish."
It's important to note that "subtilidad" can also be used in a more figurative sense to describe something that is elusive or difficult to define, like "The subtilidad of human emotions is often hard to understand."
Ultimately, the exact meaning of "subtilidad" will depend on the context in which it is used.