Sweet and then bitter or bitter and then sweet; esp. sweet with a bitter after taste; hence (Fig.), pleasant but painful.
- A woody vine of the genus Celastrus, especially the North American species C. scandens and the eastern Asian species C. orbiculata, having small, round, yellow-orange fruits that open at maturity to expose red seeds. Also called staff tree.
- See bittersweet nightshade.
- A dark to deep reddish orange.
- Bitter and sweet at the same time: bittersweet chocolate.
- Producing or expressing a mixture of pain and pleasure: a movie with a bittersweet ending.
- Dark to deep reddish-orange.