I was just in a play and this was my characater's name. It makes me think of a teenage girl who's smart, sensitive and creative. I think it's a beautiful name!
I think the Spanish pronunciation would be fee-DHE-lee-ah.
The English is fə-DEE-lee-ə or fə-DEEL-yə (rhymes with Amelia), or possibly fi-DEL-yə (like the word "fidelity").
-- Anonymous User 8/29/2008
This name was quite common in England and other English-speaking countries through the Middle Ages, but died out after the 18th Century, and is now very rare as a name in the English language.