twining shrub of North America having yellow capsules enclosing scarlet seeds - american bittersweet- climbing bittersweet- false bittersweet- staff vine- shrubby bittersweet- celastrus scandens
poisonous perennial Old World vine having violet flowers and oval coral-red berries
widespread weed in North America - bittersweet nightshade- climbing nightshade- deadly nightshade- poisonous nightshade- woody nightshade- solanum dulcamara
Adjective
having a taste that is a mixture of bitterness and sweetness
tinged with sadness "a movie with a bittersweet ending"