1. (

• bittersweet ,
• bittersweet_nightshade ,
• climbing_nightshade ,
• deadly_nightshade ,
• poisonous_nightshade ,
• woody_nightshade ,
• Solanum_dulcamara

) poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America ;

2. (

• bittersweet ,
• American_bittersweet ,
• climbing_bittersweet ,
• false_bittersweet ,
• staff_vine ,
• waxwork ,
• shrubby_bittersweet ,
• Celastrus_scandens

) twining shrub of North America having yellow capsules enclosing scarlet seeds ;

1. (

• bittersweet

) tinged with sadness; "a movie with a bittersweet ending" ;

2. (

• bittersweet ,
• semisweet

) having a taste that is a mixture of bitterness and sweetness ;