Bittersweet (adjective)

Having both bitter and sweet qualities; a mixture of sadness and happiness.

Origin:

From bitter + sweet.

Examples:

1. The bittersweet memories of her childhood stayed with her throughout her life.
2. Leaving home for the first time was a bittersweet experience for her.
3. The reunion with her long-lost friend was bittersweet because they both had changed so much.
4. The bittersweet taste of dark chocolate is what makes it so irresistible.
5. The bittersweet ending of the movie left the audience feeling both happy and sad.