na-adjective
bittersweet; tinged with sadness
Describes an experience or feeling that mixes happiness with sadness, such as a nostalgic memory or a farewell.
卒業式はビタースイートな気持ちだった。
The graduation ceremony was a bittersweet feeling.
na-adjective
Used for food or drink that has both sweet and bitter flavors, like dark chocolate or certain cocktails.
このチョコレートはビタースイートで大人の味だ。
This chocolate is bittersweet and has a mature taste.