Delicate, Dainty, Fine
noun, な adjective
Slender and thin things are very delicate and dainty. They're easily broken, so you have to be careful.
せんさい
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
上品で繊細な味の日本食が好きです。
I like the elegant and subtle flavors of Japanese food.